# Seminar 14: Child Abuse and Neglect

## Unit 3: Pediatrics Clerkship

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## Learning Objectives

1. Recognize the clinical presentations and historical features suggestive of physical abuse including sentinel injuries and concerning bruise patterns
2. Identify the classic triad and associated findings of abusive head trauma and understand the differential diagnosis
3. Apply skeletal survey indications and interpret high-specificity fracture patterns associated with non-accidental trauma
4. Recognize inflicted burns and distinguish accidental from non-accidental patterns based on distribution and characteristics
5. Understand the evaluation of suspected sexual abuse including the role of forensic interview and examination findings
6. Fulfill mandatory reporting obligations and participate effectively in multidisciplinary child protection team approaches

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## Lecture Outline

### Section 1: Epidemiology and Definitions

Child maltreatment represents a significant public health problem affecting millions of children annually with profound immediate and long-term consequences for survivors. Understanding the scope of the problem, the definitions of various forms of maltreatment, and the risk factors affecting both children and caregivers enables clinicians to maintain appropriate vigilance while providing compassionate care to families. The healthcare setting provides a critical opportunity for identification, as maltreated children frequently present for medical care either for injury evaluation or routine visits where signs may be detected.

Child maltreatment encompasses several distinct categories, each with characteristic presentations and consequences. Physical abuse involves non-accidental injury inflicted by a caregiver through hitting, kicking, shaking, burning, or other mechanisms that cause physical harm. Neglect, the most common form of maltreatment, involves failure to provide for a child's basic needs including adequate food, shelter, supervision, medical care, and education. Sexual abuse encompasses any sexual contact or exploitation of a child by an adult or older child, including contact offenses such as fondling and penetration as well as non-contact offenses such as exposure and exploitation. Emotional or psychological abuse involves patterns of caregiver behavior that convey to children that they are worthless, unwanted, or only valued for meeting another's needs. Medical child abuse, formerly termed Munchausen syndrome by proxy, involves a caregiver fabricating or inducing illness in a child, resulting in unnecessary medical evaluation and treatment.

The epidemiology of child maltreatment reveals both the scope of the problem and patterns that inform identification efforts. Approximately 1,500 children die from maltreatment annually in the United States, with many additional deaths likely misclassified. Neglect accounts for approximately seventy-five percent of substantiated cases, followed by physical abuse, sexual abuse, and emotional abuse. Young children face the highest risk of serious injury and death, with children under one year experiencing the highest fatality rates. Perpetrators are most commonly parents or caregivers, with single-parent households, young parental age, and male caregivers who are not biologically related to the child representing increased risk situations. Recurrence rates are high without intervention, emphasizing the importance of identification and protection.

Risk and protective factors operate at multiple levels including child characteristics, caregiver characteristics, family dynamics, and community factors. Child risk factors include young age, prematurity, disability, chronic illness, and difficult temperament that may increase caregiver stress. Caregiver risk factors include substance abuse, mental illness, history of being abused, young age, social isolation, and unrealistic expectations of child behavior. Family factors include domestic violence, economic stress, and single parenthood. Protective factors that reduce maltreatment risk include stable family relationships, economic security, parenting education, access to mental health services, strong community supports, and healthy parent-child attachment. Understanding these factors helps clinicians identify high-risk situations while avoiding stereotyping, as maltreatment occurs across all demographic groups.

<image>Panel A: Pie chart showing distribution of maltreatment types with neglect predominating at 75%, followed by physical abuse, sexual abuse, and emotional abuse. Panel B: Graph showing child maltreatment fatality rates by age demonstrating highest rates in infants under one year with progressive decline through childhood. Panel C: Diagram illustrating the ecological model of risk factors for child maltreatment at child, caregiver, family, and community levels. Panel D: Flowchart showing the cycle of maltreatment with intergenerational transmission and points for intervention to break the cycle.</image>

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### Section 2: Physical Abuse Recognition

Recognition of physical abuse requires understanding of developmental capabilities, injury mechanisms, and patterns that distinguish accidental from inflicted injury. Maintaining a high index of suspicion while avoiding premature conclusions requires careful attention to the history provided, the child's developmental stage, and the physical examination findings. Several historical and physical findings serve as red flags that should prompt thorough evaluation.

Historical features suggesting abuse include characteristics of the reported injury mechanism that are inconsistent with the physical findings or the child's developmental capabilities. Significant delay in seeking medical care, ranging from hours to days after injury, raises concern particularly when accompanied by explanations such as not noticing the injury or attributing it to normal fussiness. Inconsistent histories, where the explanation changes between caregivers, between initial presentation and follow-up questioning, or becomes more elaborate over time, warrant careful attention. Attributing injury to a young sibling who lacks the developmental capability to inflict the described trauma should raise concern. History of being accident-prone or having multiple emergency department visits for injury deserves investigation. A caregiver who seems more concerned about their own needs than the child's injury or who demonstrates hostility toward healthcare providers asking appropriate questions may indicate a concerning dynamic.

Sentinel injuries represent minor injuries that may precede more serious abuse and provide opportunities for early intervention before a child suffers significant harm. These injuries occur in locations or patterns that are unexpected for the child's developmental stage and deserve careful evaluation even when minor in severity. Bruising in any infant not yet independently mobile represents the most important sentinel injury to recognize, as non-mobile infants lack the capability to sustain accidental bruising through normal activities. The adage those who don't cruise rarely bruise captures this principle. Frenulum tears in infants may result from forced feeding or direct blows and should raise concern. Intraoral bruising similarly suggests inflicted trauma. The TEN-4 rule identifies high-risk bruise locations in children under four years: bruising to the Torso, Ears, or Neck in any child under four years warrants evaluation for abuse, as these locations rarely result from accidental injury in young children.

Bruise patterns and characteristics provide important diagnostic information. Patterned bruising that retains the shape of the implement used, such as belt marks appearing as linear parallel bruises, looped cord marks, hand prints, or bite marks, strongly suggests inflicted injury. Bruises in multiple stages of healing suggest repeated injury over time, though dating of bruises by color is unreliable. Bruises in protected areas that would not be expected to sustain accidental injury, such as the buttocks, genitals, inner thighs, and ears, raise concern. Bilateral symmetrical bruising is unlikely from accidental mechanisms. In contrast, bruises over bony prominences such as shins, knees, and forehead commonly result from normal childhood falls and activities in mobile children. Understanding normal bruise distribution helps contextualize findings, with accidental bruises typically occurring on the front of the body over bony prominences in mobile children.

<image>Panel A: Body diagram illustrating the TEN-4 rule highlighting torso, ear, and neck as concerning bruise locations in children under four years. Panel B: Series of photographs showing patterned injuries including linear belt marks, looped cord marks, and hand print bruising diagnostic of inflicted injury. Panel C: Comparison photographs of typical accidental bruise locations over bony prominences versus concerning locations suggesting abuse. Panel D: Infant demonstrating bruising patterns inconsistent with developmental stage in a pre-mobile child requiring abuse evaluation.</image>

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### Section 3: Abusive Head Trauma

Abusive head trauma, previously termed shaken baby syndrome, represents one of the most serious forms of child abuse with high mortality and significant long-term morbidity among survivors. Understanding the mechanisms, clinical presentations, and diagnostic findings enables recognition of this condition while awareness of the differential diagnosis prevents misattribution of other conditions as abuse. The peak age of risk corresponds to the period of excessive crying in infancy, highlighting the importance of prevention efforts targeting caregiver stress during this vulnerable period.

The epidemiology and risk factors for abusive head trauma inform both recognition and prevention efforts. The peak incidence occurs in infants younger than one year, with the highest risk in the first few months of life corresponding to the peak period of normal infant crying. Male infants are affected more frequently than females. Perpetrators are most commonly male caregivers, including fathers and mothers boyfriends, though mothers and female caregivers also inflict these injuries. Inconsolable crying is the most commonly identified trigger for shaking, emphasizing the importance of anticipatory guidance about normal infant crying patterns and safe responses to caregiver frustration. Mortality rates range from twenty to twenty-five percent, with the majority of survivors experiencing significant neurologic sequelae including developmental delay, cerebral palsy, visual impairment, and seizure disorders.

The classic triad of abusive head trauma includes subdural hematoma, retinal hemorrhages, and encephalopathy, though not all cases demonstrate all three findings. Subdural hematomas typically appear as thin collections over the cerebral convexities, often bilateral or interhemispheric, resulting from tearing of bridging veins during acceleration-deceleration forces. Retinal hemorrhages, found in the majority of abusive head trauma cases, tend to be extensive, multilayered involving multiple retinal layers, and extending to the periphery, distinguishing them from the mild hemorrhages occasionally seen with other conditions. Encephalopathy manifests as altered consciousness, irritability, poor feeding, vomiting, lethargy, or seizures. The absence of external injury is common, as the forces required to produce intracranial injury may not leave visible marks, making the diagnosis challenging when caregivers present the child for nonspecific symptoms rather than injury.

Associated findings support the diagnosis and may provide additional evidence of the mechanism of injury. Posterior rib fractures result from squeezing forces applied to the chest during shaking and demonstrate high specificity for abuse. Classic metaphyseal lesions of the long bones, also called corner fractures or bucket-handle fractures, result from shearing forces across the growth plate during shaking and similar acceleration-deceleration forces. Apnea may be the presenting complaint, leading to evaluation for apparent life-threatening event rather than trauma. Seizures occur commonly both at presentation and during the hospital course. The differential diagnosis includes accidental trauma with plausible mechanism such as witnessed falls from significant height, birth trauma which should clear by four to six weeks of age, coagulopathies including vitamin K deficiency and inherited bleeding disorders, central nervous system infections, and rare metabolic disorders such as glutaric aciduria type 1 which may cause subdural collections. Thorough evaluation including appropriate laboratory and imaging studies helps exclude mimicking conditions while avoiding failure to diagnose abuse.

<image>Panel A: CT head imaging demonstrating bilateral subdural hematomas and interhemispheric bleeding characteristic of abusive head trauma in an infant. Panel B: Fundoscopic photograph showing extensive multilayered retinal hemorrhages extending to the periphery as seen in abusive head trauma. Panel C: Chest radiograph showing healing posterior rib fractures from squeezing forces associated with abusive head trauma. Panel D: Diagram illustrating the mechanism of injury in abusive head trauma with acceleration-deceleration forces causing bridging vein rupture and brain injury.</image>

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### Section 4: Skeletal Survey

The skeletal survey represents an essential diagnostic tool in the evaluation of suspected physical abuse in young children, enabling detection of occult fractures that would otherwise be missed. Understanding the indications for skeletal survey, the components of a complete study, and the fracture patterns with varying specificity for abuse guides appropriate utilization and interpretation. The skeletal survey differs from other radiographic studies in that it requires specific dedicated images rather than a single whole-body image.

Indications for skeletal survey reflect the epidemiology of abusive fractures and the limitations of clinical examination in detecting occult injuries in young children. All children under two years of age with any concern for abuse should undergo complete skeletal survey, as physical examination cannot reliably detect healing or acute fractures without significant displacement. Children presenting with unexplained or inadequately explained injury, particularly non-mobile infants, require skeletal survey to assess for additional injuries. Multiple injuries in different stages of healing or injuries inconsistent with the reported mechanism warrant comprehensive evaluation. Siblings of children diagnosed with abuse should be evaluated with skeletal survey, as abuse often affects multiple children in a household. All children with suspected abusive head trauma require skeletal survey to identify associated injuries that may support the diagnosis.

The interpretation of skeletal survey findings requires understanding the spectrum of fracture specificity for abuse. High-specificity fractures occur uncommonly in accidental trauma and strongly suggest abuse in the absence of clear alternative explanation. Classic metaphyseal lesions, appearing as corner fractures or bucket-handle fractures depending on the radiographic projection, result from shearing and tractional forces across the physis and demonstrate very high specificity for abuse. Posterior rib fractures result from anteroposterior compression during squeezing and similarly carry high specificity. Sternal fractures, spinous process fractures, and scapular fractures are uncommon in accidental childhood trauma and suggest abuse. Moderate-specificity fractures raise concern when other features suggest abuse but can occur accidentally. Multiple fractures at different stages of healing indicate repeated injury over time. Bilateral fractures are unlikely from single accidental events. Complex skull fractures, particularly those crossing suture lines or involving bones other than the parietal, raise more concern than simple linear parietal fractures which commonly result from falls.

The follow-up skeletal survey, performed approximately two weeks after the initial study, increases detection of fractures that were not apparent on initial imaging. As fractures heal, periosteal reaction and callus formation make them more visible radiographically. The follow-up survey is indicated when the initial study shows concerning findings or when clinical suspicion remains despite negative initial imaging. Some fractures, particularly rib fractures and subtle metaphyseal lesions, may only become apparent on follow-up imaging. The combination of initial and follow-up skeletal surveys maximizes sensitivity for detecting abusive fractures. Documentation should note that some fractures may still be missed, and normal skeletal survey does not exclude abuse.

<image>Panel A: Complete skeletal survey image set demonstrating the standard views required including AP and lateral skull, AP chest, lateral spine, AP pelvis, and dedicated extremity views. Panel B: Radiograph demonstrating classic metaphyseal lesion of the distal tibia appearing as corner fracture with diagram showing shearing mechanism across the physis. Panel C: Chest radiograph showing healing posterior rib fractures with callus formation visible on two-week follow-up study that was not apparent on initial imaging. Panel D: Comparison of healing fractures at different stages with periosteal reaction and callus demonstrating chronicity of injuries.</image>

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### Section 5: Burns and Other Injuries

Inflicted burns account for a significant proportion of abusive injuries and produce characteristic patterns that help distinguish them from accidental burns. Understanding the mechanisms that produce specific burn patterns enables recognition of inflicted injury while appropriate documentation supports child protection proceedings. Other injuries including abdominal trauma and oral injuries round out the physical abuse presentation spectrum.

Inflicted burns produce patterns that reflect the mechanism by which the child was injured. Immersion burns result from forcibly holding a child in hot liquid, typically bathtub water, as punishment. The classic pattern demonstrates symmetric involvement of the buttocks and lower extremities with clear lines of demarcation rather than the irregular splash marks expected from accidentally entering or spilling hot liquid. Flexural creases may be spared because the child reflexively flexes and the flexor surfaces are protected from contact with the water. The stocking or glove distribution affecting hands or feet occurs when extremities are forcibly immersed. Buttock and perineal burns are particularly concerning for toilet training punishment. Contact burns from cigarettes produce circular full-thickness burns of uniform size, while accidental cigarette burns typically produce more superficial irregular injuries from brief contact. Patterned burns retaining the shape of the instrument used, such as iron marks or hot grate patterns, indicate inflicted injury.

Several features help distinguish inflicted from accidental burns. Inflicted burns demonstrate clear lines of demarcation reflecting the water line during forced immersion, while accidental immersion produces irregular borders with splash marks from attempts to escape. Uniform depth throughout suggests forced sustained contact, whereas accidental burns show variable depth reflecting attempted withdrawal. Burns on dorsal surfaces of hands typically result from defensive attempts to remove hands from hot objects, while palmar burns suggest forced contact. Multiple burn sites are concerning, as accidental burns typically involve a single area. The history provided should account for the burn pattern observed, and inconsistent explanations warrant investigation.

Abdominal trauma represents an under-recognized form of abuse with high mortality, as injuries may not produce external signs and presentation may be delayed. The mechanism typically involves blows or kicks to the abdomen. Organs commonly injured include the liver, spleen, pancreas, kidneys, and duodenum. Duodenal hematoma from blunt force produces a characteristic presentation with bilious vomiting and upper gastrointestinal obstruction. Hollow viscus perforation may occur hours to days after injury, presenting with peritonitis. The absence of external bruising does not exclude significant internal injury. Evaluation with CT imaging is indicated when abdominal trauma is suspected. Other concerning injuries include oral injuries such as frenulum tears in infants from forced feeding or direct blows, torn frenulum being highly specific for abuse in non-ambulatory infants. Ear bruising, particularly to the pinna, results from slapping or grabbing. Human bite marks are identified by their characteristic oval pattern and may be distinguished from animal bites by measurement. Strangulation may produce neck bruising, facial petechiae, and subconjunctival hemorrhages.

<image>Panel A: Immersion burn demonstrating clear demarcation line and symmetric involvement of buttocks and lower extremities with flexural sparing from forced immersion. Panel B: Circular cigarette burns of uniform size on the forearm demonstrating characteristic full-thickness contact burn pattern. Panel C: Patterned burn showing imprint of hot iron on the hand from forced contact with heated object. Panel D: CT imaging of liver laceration from blunt abdominal trauma in the absence of external abdominal bruising in child abuse case.</image>

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### Section 6: Sexual Abuse

Sexual abuse affects a substantial proportion of children, with lifetime prevalence estimates of approximately one in four girls and one in thirteen boys, though underreporting means the true prevalence is likely higher. The evaluation of suspected sexual abuse requires specialized approaches to history taking, physical examination, and evidence collection that differ from evaluation of other forms of abuse. Understanding the typical presentations and limitations of physical examination findings enables appropriate evaluation while minimizing additional trauma to the child.

The presentation of sexual abuse varies considerably and often involves disclosure rather than physical findings. Verbal disclosure by the child represents the most common presentation and should be taken seriously and responded to appropriately. Behavioral changes including sexualized behavior beyond developmental expectations, regression, sleep disturbances, and school problems may prompt evaluation though these findings are nonspecific. Physical presentations include sexually transmitted infections, pregnancy in young adolescents, and genital injury, though these occur in the minority of cases. Nonspecific symptoms such as abdominal pain, dysuria, and vaginal discharge may lead to evaluation revealing abuse. The delayed disclosure typical of sexual abuse reflects the dynamics of the abuse relationship, with perpetrators typically known to and trusted by the child and often using grooming, threats, and manipulation to maintain secrecy.

Physical examination findings in sexual abuse cases are normal in the majority of children evaluated, and a normal examination neither confirms nor excludes abuse. The mucosal surfaces of the genital area heal rapidly, and many forms of sexual abuse do not produce visible injury. Examination should be performed by clinicians trained in forensic examination techniques, ideally at a child advocacy center. Normal anatomic variations including hymenal configurations, labial adhesions, and genital erythema should be recognized to avoid misinterpretation as injury. Concerning findings include acute trauma such as lacerations, bruising, and abrasions to the genital or anal area, complete transection of the hymen, and presence of sexually transmitted infections. Documentation with photographs requires appropriate consent and should follow established protocols.

The evaluation of sexual abuse involves coordination among medical providers, forensic interviewers, child protective services, and law enforcement. The medical history should use open-ended, non-leading questions and document the child's statements verbatim using quotation marks. Detailed questioning about the abuse should be deferred to trained forensic interviewers to avoid repeated questioning that may traumatize the child and potentially compromise legal proceedings. Sexually transmitted infection testing should be performed according to age-appropriate guidelines, with proper chain-of-custody procedures if results may be used in legal proceedings. Forensic evidence collection using a sexual assault kit should be performed within seventy-two hours of acute assault when indicated. Pregnancy testing is appropriate for postmenarchal females. The examiner's role is to document findings objectively rather than to determine whether abuse occurred, with ultimate determinations made through the investigative and legal process.

<image>Panel A: Diagram of normal female genital anatomy showing hymenal configurations and anatomic landmarks relevant to forensic examination documentation. Panel B: Flowchart showing appropriate response to child disclosure of sexual abuse from initial disclosure through forensic interview, medical examination, and reporting. Panel C: Comparison of normal hymenal variations versus acute traumatic findings requiring documentation and further evaluation. Panel D: Sexual assault evidence collection kit contents and proper chain-of-custody documentation procedures for forensic evidence preservation.</image>

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### Section 7: Neglect

Neglect, though often less dramatic than physical abuse, accounts for the majority of child maltreatment cases and produces significant harm including developmental delay, growth failure, and death. The evaluation of neglect requires understanding of the various forms neglect may take and the physical signs that may indicate inadequate care. Distinguishing neglect from poverty requires attention to the caregiver's actions within their available resources rather than the resources themselves.

The forms of neglect span multiple domains of child welfare and development. Physical neglect involves failure to provide adequate food, clothing, shelter, or supervision necessary for health and safety. Medical neglect occurs when caregivers fail to seek or adhere to recommended medical care, including failure to obtain necessary treatment for acute illness, non-adherence to treatment regimens for chronic conditions, failure to maintain recommended immunizations, and failure to obtain indicated specialty care. Educational neglect involves failure to enroll children in school or ensure regular attendance. Emotional neglect involves patterns of ignoring or rejecting the child or failing to provide adequate emotional support and stimulation. Supervisional neglect involves leaving children without adequate supervision given their age and developmental level, exposing them to safety hazards.

Physical signs suggesting neglect may be identified during routine healthcare encounters or present acutely. Failure to thrive, or growth faltering, may result from inadequate nutrition and should be evaluated carefully to distinguish neglect from organic causes, though the two may coexist. Poor hygiene when severe and persistent raises concern, though transient poor hygiene occurs in many families without indicating neglect. Severe, multiple untreated dental caries suggest lack of appropriate dental care. Developmental delay from understimulation may occur in severely neglected children. Clothing inappropriate for weather conditions, such as inadequate warm clothing in winter, may indicate neglect. Signs of inadequate supervision include repeated preventable injuries, ingestions, and exposure to hazardous situations.

Medical neglect presents particular challenges in balancing parental autonomy with child welfare. Evaluation should consider whether caregivers have access to necessary resources, understand the medical recommendations and their importance, and have the capacity to carry out treatment plans. Chronic disease requiring complex treatment regimens, such as diabetes or cystic fibrosis, may be complicated by non-adherence that endangers the child. Missed appointments for indicated follow-up, failure to fill prescribed medications, and delay in seeking emergency care for acute illness may constitute medical neglect depending on circumstances. Religious beliefs may lead some families to decline medical treatment, with legal intervention sometimes required to ensure life-saving care for children. Evaluation of supervisional neglect should consider the child's developmental level, the duration and circumstances of inadequate supervision, the environment, and state-specific guidelines regarding appropriate supervision by age.

<image>Panel A: Growth chart demonstrating pattern of growth faltering concerning for nutritional neglect with weight dropping across percentile lines over time. Panel B: Clinical photograph showing severe dental caries from prolonged bottle use and lack of dental care typical of dental neglect. Panel C: Diagram illustrating the components of a comprehensive neglect evaluation including nutritional assessment, developmental screening, dental examination, and psychosocial evaluation. Panel D: Flowchart for evaluating suspected medical neglect considering caregiver access to resources, understanding of recommendations, and capacity to provide care.</image>

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### Section 8: Evaluation and Documentation

The medical evaluation of suspected child maltreatment requires systematic assessment including detailed history, comprehensive physical examination, and appropriate diagnostic testing. Documentation must be thorough, objective, and suitable for use in legal proceedings while supporting clinical decision-making and communication with child protection professionals. The medical record may constitute critical evidence, making careful attention to documentation standards essential.

History taking in suspected maltreatment cases requires particular attention to technique and documentation. Questions should be open-ended and non-leading, allowing the child or caregiver to provide information without suggestion. The child's statements should be documented verbatim using quotation marks, recording the exact words used rather than paraphrasing or interpretation. The reported mechanism of injury should be documented in detail, including who was present, what happened, how the injury occurred, and when it was first noticed. Developmental history establishes the child's capabilities, relevant to whether the reported mechanism is consistent with developmental stage. A detailed caregiver history should document who has had access to the child during the relevant time period. Discrepancies between different historians' accounts or between the initial and subsequent histories should be documented without interpretation in the medical record.

Physical examination should be comprehensive and systematically documented. Complete examination from head to toe identifies all injuries, not only the presenting complaint. Each injury should be documented with precise anatomic location, size measured with a ruler, shape, color, and characteristics. Photographs provide valuable documentation and should be taken with a ruler for scale, patient identification in the image, and attention to adequate lighting and focus. Multiple photographs of each injury from different angles and distances provide comprehensive documentation. Developmental assessment documents the child's motor capabilities relevant to injury mechanism evaluation. Growth parameters including weight, height, and head circumference should be plotted and compared with previous measurements. The general appearance including hygiene, interaction with caregivers, and behavior provides relevant context.

Laboratory evaluation and imaging guide diagnosis while ruling out alternative explanations for concerning findings. When bleeding or bruising is present, coagulation studies including prothrombin time, partial thromboplastin time, and platelet count evaluate for bleeding disorders. Complete blood count assesses for anemia and thrombocytopenia. When abdominal trauma is suspected, liver function tests, lipase, and urinalysis screen for solid organ and hollow viscus injury, with CT imaging for further evaluation. Genetic testing for osteogenesis imperfecta may be appropriate when multiple unexplained fractures are present. Skeletal survey is indicated for children under two years with concern for abuse. CT head is indicated for suspected head trauma. The evaluation should document that appropriate testing was performed to exclude alternative diagnoses rather than assuming abuse without appropriate medical evaluation.

<image>Panel A: Demonstration of proper injury documentation photography technique showing patient identification, ruler for scale, and multiple angles for comprehensive documentation. Panel B: Sample documentation template for abuse evaluation showing systematic recording of history, examination findings, and diagnostic studies. Panel C: Flowchart showing diagnostic evaluation algorithm for suspected physical abuse including laboratory studies, imaging, and consultation. Panel D: Example of properly documented injury description with measurement, location, characteristics, and accompanying photograph.</image>

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### Section 9: Reporting and Legal Aspects

Healthcare providers are mandated reporters of suspected child abuse and neglect in all jurisdictions, with specific legal obligations regarding when and how to report. Understanding the reporting requirements, the standard for reporting, and the role of the medical provider in the child protection system enables appropriate fulfillment of these obligations while maintaining the therapeutic relationship with families.

The legal framework for mandatory reporting establishes clear obligations for healthcare providers. All healthcare professionals who have contact with children are mandated reporters, including physicians, nurses, medical students, and other clinical staff. The standard for reporting is reasonable suspicion of abuse or neglect, not certainty or proof. Reports should be made immediately upon forming reasonable suspicion, typically by telephone to the child protective services hotline with written follow-up. Mandatory reporters are provided immunity from civil and criminal liability for good-faith reports, even if investigation does not substantiate the concerns. Failure to report suspected abuse may result in civil or criminal penalties depending on jurisdiction. The physician's role is to report suspicion rather than to investigate or determine whether abuse occurred, with investigation conducted by child protective services and law enforcement.

The report to child protective services should include specific information to enable appropriate response and investigation. Child information includes name, age, address, and current location. Parent and caregiver information includes names, relationship to the child, and contact information. The basis for concern should be described factually, including the injuries or findings observed, the history provided, and the reasons for concern about possible maltreatment. Prior concerns about the family or child protective services involvement, if known, should be communicated. The child's current safety status and any immediate needs should be conveyed. Documentation of the report in the medical record should include the date and time of the report, the agency notified, the name of the person receiving the report, and a summary of information provided.

The multidisciplinary approach to child protection involves coordination among multiple professionals with complementary roles. Child protective services investigates reports, assesses child safety, and provides or arranges services for families. Law enforcement investigates potential criminal conduct and may work jointly with child protective services on investigations. The medical team provides evaluation, treatment, and medical opinions regarding injury mechanisms and consistency with reported history. Child advocacy centers coordinate the multidisciplinary response and provide child-friendly settings for forensic interviews and medical evaluations. Forensic interviewers, specially trained in techniques for interviewing children about sensitive matters, conduct detailed interviews minimizing repeated questioning. The court system adjudicates dependency proceedings regarding child custody and criminal proceedings against perpetrators. Medical providers may be called as expert witnesses to provide medical opinions regarding the nature and cause of injuries.

<image>Panel A: Flowchart depicting the mandatory reporting process from identification of concern through report to child protective services, documentation, and follow-up. Panel B: Diagram showing the roles and relationships of multidisciplinary team members including medical providers, CPS, law enforcement, forensic interviewers, and the court system. Panel C: Template for documenting a report to child protective services in the medical record with required elements. Panel D: Map showing information flow from medical evaluation through investigation to court proceedings with medical provider testimony role.</image>

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### Section 10: Prevention and Intervention

Prevention of child maltreatment operates at multiple levels from universal education to targeted intervention for high-risk families and treatment after maltreatment has occurred. Healthcare providers contribute to prevention through routine anticipatory guidance, identification of high-risk situations, and connection of families with support resources. Understanding evidence-based prevention strategies enables effective intervention at each level.

Primary prevention strategies aim to reduce maltreatment in the general population before it occurs. Parenting education programs teaching developmentally appropriate expectations and positive discipline techniques reach families through prenatal care, well-child visits, and community settings. The Period of PURPLE Crying program specifically targets prevention of abusive head trauma by educating parents about normal infant crying patterns and safe responses to caregiver frustration. The acronym PURPLE describes characteristics of normal infant crying: Peak of crying occurs around two months, Unexpected timing with episodes beginning and ending without obvious reason, Resistance to soothing even with best efforts, Pain-like appearance on the infant's face, Long-lasting episodes that may continue for hours, and Evening concentration with more crying in late afternoon and evening. Teaching parents that these characteristics are normal and that walking away from a crying infant to calm down is appropriate helps prevent shaking in moments of frustration. Public awareness campaigns address recognition and reporting of abuse.

Secondary prevention targets families identified as high-risk before maltreatment has occurred. Home visiting programs represent the most evidence-based approach to secondary prevention. The Nurse-Family Partnership program provides intensive home visiting by nurses to high-risk first-time mothers beginning prenatally and continuing through the child's second birthday, with demonstrated reductions in child abuse and neglect as well as other benefits for mothers and children. Healthy Families America and other home visiting models similarly provide support, parenting education, and connection to resources for high-risk families. Identification of risk factors during prenatal care and early childhood visits enables referral to appropriate support services. Screening for domestic violence, parental mental health, and substance use with appropriate referral addresses caregiver risk factors that increase maltreatment risk.

Tertiary prevention addresses intervention after maltreatment has been identified to prevent recurrence and address the consequences of abuse. Safety planning ensures the child is protected from further harm, which may involve removal from the home or removal of the perpetrator. Medical treatment addresses physical injuries and their sequelae. Trauma-focused cognitive behavioral therapy represents the evidence-based treatment for children who have experienced abuse, addressing trauma symptoms while supporting healthy development. Family services may focus on rehabilitation when safe reunification is the goal or on supporting transition to permanent placement when reunification is not appropriate. Foster care provides temporary placement with relative caregivers or licensed foster families when children cannot safely remain at home. Termination of parental rights and adoption provide permanency when parents cannot adequately address the factors that led to maltreatment.

<image>Panel A: Infographic illustrating the Period of PURPLE Crying components educating parents about normal infant crying patterns and safe responses to crying. Panel B: Graph showing evidence for home visiting program effectiveness in reducing child maltreatment compared with control populations. Panel C: Diagram depicting the levels of prevention from primary universal education through secondary targeted intervention to tertiary treatment and protection after maltreatment. Panel D: Flowchart showing the child protection system pathway from report through investigation, safety planning, services, and permanency outcomes.</image>

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## Summary

- Sentinel injuries such as bruising in non-mobile infants, frenulum tears, and TEN-4 location bruising (torso, ear, neck in children under 4) require evaluation for abuse even when apparently minor

- Abusive head trauma presents with the classic triad of subdural hematoma, extensive multilayered retinal hemorrhages, and encephalopathy, with associated findings of posterior rib fractures and metaphyseal lesions supporting the diagnosis

- High-specificity fractures for abuse include classic metaphyseal lesions resulting from shearing forces, posterior rib fractures from squeezing, and sternal and scapular fractures

- Skeletal survey is indicated for all children under 2 years with concern for abuse, with follow-up survey at 2 weeks increasing detection of healing fractures not visible initially

- Inflicted immersion burns demonstrate symmetric involvement, clear demarcation lines, uniform depth, and flexural sparing, in contrast to accidental burns with irregular borders and splash marks

- Physical examination in sexual abuse is normal in the majority of cases, and normal examination neither confirms nor excludes abuse, making disclosure the most common presentation

- Neglect is the most common form of maltreatment (75% of cases) and includes physical, medical, educational, emotional, and supervisional neglect

- Mandatory reporting requires reasonable suspicion rather than certainty, with reports made immediately to child protective services and good-faith reporters protected by immunity

- Documentation should be thorough, objective, and verbatim when recording child statements, with photographs taken with ruler for scale and proper identification

- Prevention programs including Period of PURPLE Crying for abusive head trauma and home visiting programs such as Nurse-Family Partnership demonstrate evidence-based effectiveness

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## Key Terms

| Term | Definition |
|------|------------|
| Sentinel injury | Minor injury serving as potential warning sign for abuse before more serious injury occurs |
| TEN-4 | Concerning bruise locations in children under 4 years: Torso, Ear, Neck |
| Classic metaphyseal lesion | Fracture resulting from shearing forces across the physis, appearing as corner or bucket-handle fracture, highly specific for abuse |
| Abusive head trauma | Intracranial injury from inflicted trauma, previously termed shaken baby syndrome |
| Retinal hemorrhage | Bleeding in the retinal layers, when extensive and multilayered highly suggestive of abusive head trauma |
| Medical child abuse | Caregiver-fabricated or induced illness, formerly termed Munchausen syndrome by proxy |
| Mandatory reporter | Professional legally required to report suspected child abuse or neglect |
| Forensic interview | Specialized interview of child victim conducted by trained professional for investigative purposes |

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