# Clinical Cases: Special Populations in Psychiatry

## Case 1: Late-Life Depression with Pseudodementia

### Patient Demographics
- **Age:** 76 years old
- **Sex:** Female
- **Occupation:** Retired nurse
- **Living Situation:** Lives alone, widowed 6 months ago

### Chief Complaint
Per daughter: "Mom can't remember anything anymore. I'm worried she has Alzheimer's like grandma."

### History of Present Illness
The patient is a 76-year-old woman brought by her daughter for evaluation of memory problems that began approximately 4-5 months ago, shortly after her husband of 52 years died from pancreatic cancer. The daughter reports her mother has difficulty remembering recent conversations, missed several appointments, forgot to pay bills (for the first time ever), and got confused while driving to the grocery store she's been going to for decades.

On interview, the patient appears withdrawn and apathetic. She frequently responds "I don't know" to questions before attempting to answer. When encouraged to try, she often answers correctly. She is slow to respond and appears to have difficulty concentrating.

The daughter reports additional concerns: Her mother has stopped attending her bridge club, lost 12 pounds, sleeps poorly, and has expressed statements like "I wish I could be with Harold" and "What's the point of going on?" She has stopped cooking and often doesn't eat unless her daughter brings food. The house, which was always immaculate, is now cluttered and dirty.

### Past Psychiatric History
- One episode of depression 20 years ago after her mother died; treated with "a medication" for about a year, recovered fully
- No history of cognitive impairment prior to husband's death
- Was sharp, managed household finances, active socially

### Medical History
- Hypertension (controlled)
- Osteoarthritis
- Hypothyroidism (on levothyroxine)

### Mental Status Examination

**Appearance:** Thin elderly woman, clothes wrinkled and stained, hair disheveled, poor hygiene, appears older than stated age

**Behavior:** Psychomotor retardation, poor eye contact, sighs frequently

**Speech:** Slow rate, soft volume, long latencies before responding

**Mood:** "Empty... I just don't care about anything anymore"

**Affect:** Flat, constricted, tearful when discussing husband

**Thought Process:** Impoverished, slow but linear

**Thought Content:**
- Pervasive hopelessness
- Passive suicidal ideation ("I wish I could be with Harold, I wish I wouldn't wake up")
- No active suicidal ideation, plan, or intent
- No psychotic symptoms

**Cognition:**
- MoCA: 22/30
  - Lost points on delayed recall (0/5 with no improvement with cues)
  - Lost points on attention tasks
  - Orientation intact
- Key observation: "I don't know" responses initially, then correct answers with encouragement
- APPEARS more impaired than she IS

### Comparison: Pseudodementia vs. Dementia

| Feature | This Patient | Typical Alzheimer's |
|---------|-------------|---------------------|
| Onset | Relatively rapid (months) | Insidious (years) |
| Temporal relationship | After husband's death | No clear precipitant |
| Patient's awareness | "I can't remember anything" | Often unaware/minimizes |
| Effort on testing | Low ("I don't know") | Tries hard but fails |
| Response to encouragement | Improves with support | No change |
| Memory pattern | Variable | Consistent impairment |
| Mood | Clearly depressed | May be preserved early |
| Previous episodes | Yes (depression) | N/A |

### Diagnosis

**Major Depressive Disorder, Recurrent, Severe, with Cognitive Impairment ("Pseudodementia") (F33.2)**

**Evidence:**
- Depressed mood
- Anhedonia (stopped bridge, cooking, activities)
- Weight loss (12 lbs)
- Sleep disturbance
- Psychomotor retardation
- Fatigue/low energy
- Worthlessness implied
- Passive suicidal ideation
- Cognitive difficulties (secondary to depression)
- Clear temporal relationship to husband's death
- Prior depressive episode
- Cognitive impairment pattern more consistent with depression than dementia

**Key Teaching Point:**
"Pseudodementia" = cognitive impairment caused by depression that improves with depression treatment. Important to distinguish from true dementia, as treatment approaches differ dramatically.

### Treatment Plan

**1. Safety:**
- Passive suicidal ideation without plan - moderate risk given isolation, recent loss, and hopelessness
- Increase social contact (daughter to check daily)
- Safety plan developed
- Remove firearms if any (there are none)
- Consider hospitalization if worsens

**2. Pharmacotherapy:**
- Sertraline 25 mg daily, titrate to 50 mg in 1 week
  - SSRI preferred for geriatric depression
  - Avoid TCAs (anticholinergic effects worsen cognition, cardiac risk)
  - Lower starting dose in elderly
- Expected timeline: 4-8 weeks for full effect
- Monitor closely for response

**3. Psychotherapy:**
- Supportive therapy initially
- Grief-focused therapy for complicated bereavement
- Behavioral activation: structured activities, social contact
- Problem-solving therapy for practical issues

**4. Social Support:**
- Assess home safety (can she manage alone?)
- Consider home health aide
- Meals on Wheels or similar
- Re-engage with social activities (bridge club) as depression improves
- Grief support group

**5. Follow-up:**
- Weekly appointments initially
- MoCA repeated in 6-8 weeks to assess cognitive improvement with depression treatment
- If cognition does not improve with depression treatment, further dementia workup needed

### Expected Outcome
With treatment of depression, cognitive function should significantly improve. If this is true pseudodementia, her MoCA should normalize or near-normalize. If cognitive impairment persists despite depression remission, underlying dementia should be considered.

---

## Case 2: Perinatal Mood Disorder

### Patient Demographics
- **Age:** 29 years old
- **Sex:** Female
- **Occupation:** Marketing coordinator (currently on maternity leave)
- **Reproductive Status:** 3 weeks postpartum

### Chief Complaint
Per husband: "She won't stop crying and she's afraid to hold the baby. Something is really wrong."

### History of Present Illness
The patient is a 29-year-old woman, 3 weeks postpartum from her first pregnancy, brought by her husband for urgent evaluation. The pregnancy was uncomplicated, and the delivery was a planned cesarean section due to breech presentation. The baby is healthy.

The husband reports that initially she seemed "tired but happy." However, starting about 1 week ago, she has been crying multiple times daily, has difficulty sleeping even when the baby sleeps, has lost her appetite, and has become increasingly anxious and withdrawn. Most concerning, she has expressed fears about being alone with the baby, stating "I'm going to do something wrong. I shouldn't be left alone with her."

When interviewed alone, the patient tearfully discloses that she is having intrusive thoughts about harming the baby - specifically, intrusive images of dropping the baby or the baby suffocating. She is horrified by these thoughts and goes to great lengths to avoid acting on them (e.g., having her husband change diapers near hard surfaces, repeatedly checking that the baby is breathing). She has no desire or intention to harm the baby and is frightened by the thoughts.

She also reports feeling like a "terrible mother" and that she doesn't feel the "instant bond" she expected with the baby. She describes feeling detached and going through the motions of care. She has passive suicidal ideation ("everyone would be better off without me") but denies intent or plan.

### Past Psychiatric History
- Anxiety disorder in college, treated briefly with SSRI
- No prior depressive episodes
- Family history: Mother had "baby blues" with patient's brother

### Mental Status Examination

**Appearance:** Young woman, appears exhausted, tearful throughout, appropriately dressed

**Behavior:** Cooperative, anxious, wringing hands, frequently looking toward door (husband and baby in waiting room)

**Speech:** Normal rate, soft volume, quavering

**Mood:** "Scared and miserable"

**Affect:** Anxious, depressed, tearful, appropriate reactivity

**Thought Process:** Linear, ruminative about baby and intrusive thoughts

**Thought Content:**
- Intrusive thoughts of infant harm (ego-dystonic - horrified by them)
- No desire or intent to harm infant
- Passive suicidal ideation without plan or intent
- Guilt about not being a "good mother"
- Hopelessness about recovery

**Perceptions:** Intrusive images (not hallucinations - recognizes as own thoughts)

**Cognition:** Alert, oriented, concentration impaired by anxiety

**Insight:** Good - recognizes something is wrong

**Judgment:** Good - seeking help

### Differential Diagnosis

**1. Peripartum Depression with Peripartum Anxiety:**
- Most likely diagnosis
- Intrusive thoughts about infant harm are COMMON in postpartum anxiety (up to 50% of new mothers have some)
- Ego-dystonic (distressing, not desired) = NOT risk for harm to infant
- Avoidance behaviors = anxiety response, not prodrome to violence

**2. Postpartum OCD:**
- Intrusive thoughts of infant harm + avoidance/compulsive checking
- Significant overlap with this presentation
- Treatment similar

**3. Postpartum Psychosis:**
- NOT present here
- Would see: Confusion, disorganized behavior, delusions about baby, command hallucinations, ego-syntonic thoughts about harming baby
- This patient has ego-dystonic intrusive thoughts, full insight, no psychosis

**CRITICAL DISTINCTION:**
- **Ego-dystonic intrusive thoughts** (horrified by them, avoiding) = anxiety-based, LOW risk
- **Ego-syntonic thoughts/delusions** (baby is evil, commanded to harm) = psychosis, HIGH risk

### Diagnosis

**Major Depressive Disorder, Single Episode, Moderate, with Peripartum Onset (F32.9)**

**with comorbid:**

**Anxiety Disorder, with Peripartum Onset, with obsessive features**

**Risk Assessment:**
- Risk to infant: LOW (ego-dystonic thoughts, no intent, avoidance behavior = protective)
- Risk to self: LOW-MODERATE (passive SI without plan)

### Treatment Plan

**1. Psychoeducation (Critical for this patient):**
- Normalize intrusive thoughts: "Up to 50% of new mothers have scary thoughts about their baby. Having the thought does NOT mean you will act on it."
- Explain the difference: "The fact that these thoughts horrify you is actually reassuring. If you wanted to hurt your baby, you wouldn't be so distressed."
- Validate her experience: "You are not a bad mother. You are struggling with a treatable illness."

**2. Pharmacotherapy:**
- **Sertraline 25 mg daily, titrate to 50 mg in 1 week**
  - SSRI of choice for perinatal depression
  - Compatible with breastfeeding (low infant exposure)
  - Effective for both depression and OCD-like symptoms
  - Onset: 2-4 weeks

**3. Psychotherapy:**
- Referral to therapist specializing in perinatal mental health
- CBT for intrusive thoughts (exposure and response prevention concepts)
- Do NOT engage in reassurance-seeking (reinforces anxiety)
- Behavioral activation for depression

**4. Support:**
- Husband can continue to be primary caregiver until stabilized - this is okay and temporary
- Do NOT force her to be alone with baby before she's ready (would worsen anxiety)
- Gradual exposure to infant care as anxiety improves
- Postpartum support group when ready

**5. Safety:**
- She is NOT at elevated risk of harming baby
- Active suicide assessment: Passive ideation only, no plan, no intent
- Safety plan in place
- Return precautions for worsening symptoms

**6. Additional Resources:**
- Postpartum Support International helpline
- Consider lactation consultant (breastfeeding difficulties can worsen depression)

**7. Follow-up:**
- Psychiatry in 1 week
- Closer follow-up if worsening
- If no improvement in 4-6 weeks, consider augmentation or ECT (safe in postpartum, rapid acting)

### Red Flags for Postpartum Psychosis (NOT present here, but important to know)
- Onset typically within first 2 weeks postpartum
- Confusion, disorientation
- Paranoid or bizarre delusions
- Hallucinations (especially command hallucinations)
- Ego-syntonic thoughts of infant harm ("the baby is evil")
- Disorganized behavior
- Rapid mood fluctuations
- Sleep: Often unable to sleep even when exhausted (vs. insomnia of depression)
- **REQUIRES IMMEDIATE HOSPITALIZATION** - high risk of suicide and infanticide

---

## Case 3: LGBTQ+ Affirming Care - Transgender Adolescent

### Patient Demographics
- **Age:** 16 years old
- **Sex Assigned at Birth:** Male
- **Gender Identity:** Female (transgender woman)
- **Preferred Name:** Maya (legal name Michael)
- **Pronouns:** She/her
- **Grade:** 11th grade

### Chief Complaint
"My parents found out I've been dressing as a girl at school. They're freaking out. I just want to be myself."

### History of Present Illness
Maya is a 16-year-old transgender female brought by her parents after they discovered she has been presenting as female at school for the past 6 months, going by the name Maya and using she/her pronouns. The school had been aware and accommodating, but Maya had not told her parents, fearing their reaction.

Her parents are distressed, stating they "want their son back" and asking if there's treatment to "fix this." They express concern that Maya has been "brainwashed by the internet" and that this is a "phase."

Maya has experienced gender dysphoria since early childhood. She recalls feeling "wrong" in her body starting around age 5-6, preferring female playmates and activities, and dreaming of waking up as a girl. She has tried to suppress these feelings for years due to family and religious expectations. In middle school, she began secretly exploring feminine expression online. Six months ago, she found the courage to socially transition at school after connecting with an LGBTQ+ support group.

Since transitioning at school, she reports improved mood, better grades, more friendships, and reduced anxiety. However, living a "double life" has been stressful, and she has experienced significant anxiety about her parents finding out.

She reports past depressive episodes and history of self-harm (cutting, last episode 8 months ago before social transition). She has had passive suicidal ideation in the past ("wished I wasn't alive") but denies current ideation. She denies current self-harm.

### Mental Status Examination

**Appearance:** Adolescent presenting in somewhat androgynous manner (parents present - wearing masculine clothes but with subtle makeup); appears appropriate age

**Behavior:** Initially guarded with parents present, more open when interviewed alone

**Speech:** Normal rate and rhythm

**Mood:** "Stressed" (with parents); "Relieved to finally talk about this" (alone)

**Affect:** Anxious with parents, brighter when discussing gender identity without parents present

**Thought Process:** Linear, articulate, age-appropriate

**Thought Content:**
- No current suicidal ideation
- No current self-harm
- Gender dysphoria present - distress about male body characteristics (voice, facial hair beginning)
- No psychotic symptoms

**Cognition:** Alert, oriented, intact

**Insight:** Good

**Judgment:** Age-appropriate

### Assessment

**Diagnoses:**

**1. Gender Dysphoria in Adolescents (F64.1)**

**DSM-5 Criteria Met (6+ months, ≥2 required):**
- Marked incongruence between experienced gender and primary/secondary sex characteristics
- Strong desire to be rid of primary/secondary sex characteristics
- Strong desire for primary/secondary sex characteristics of experienced gender
- Strong desire to be of experienced gender
- Strong conviction that one has typical feelings/reactions of experienced gender

**2. Major Depressive Disorder, Recurrent, in Partial Remission**
- History of depression, significantly improved with social transition

**3. Non-Suicidal Self-Injury, in remission (8 months)**

**Important Context - Minority Stress:**
Maya's past depression, self-harm, and suicidal ideation are consistent with minority stress experienced by transgender youth, not pathology inherent to being transgender. Her improvement with social transition supports this.

### Clinical Approach

**1. Establish Affirming Therapeutic Relationship:**
- Use Maya's preferred name and pronouns consistently
- Acknowledge her experience and identity
- Create safe space separate from parental reactions

**2. Assess Current Safety:**
- No current suicidal ideation - GOOD
- No current self-harm - GOOD
- Coping skills: Improved since connecting with support community
- Risk factors: Parental rejection is a significant risk factor for transgender youth

**3. Family Intervention (Critical):**

*With parents:*
- Psychoeducation about gender identity vs. sexual orientation
- Explain that gender dysphoria typically emerges early in childhood (Maya's history)
- Share evidence: Social transition associated with improved mental health
- Share evidence: Family acceptance is the strongest protective factor against suicide in LGBTQ+ youth
- Address misconceptions (not a "phase," not "brainwashed")
- Allow space for parental adjustment while prioritizing Maya's wellbeing

*Evidence to share with parents:*
- Transgender identity is not a mental illness
- Attempting to change gender identity (conversion therapy) is harmful and ineffective
- Family acceptance reduces suicide attempt risk by 50%
- Rejection increases depression, substance use, and suicidal behavior

**4. Treatment Recommendations:**

*For Maya:*
- Individual therapy with LGBTQ+-affirming therapist
- Continue connection with peer support group
- Monitor mood and safety

*For family:*
- Family therapy to work toward acceptance
- PFLAG referral for parents
- Time for parental adjustment (this is a process)

**5. Gender-Affirming Medical Care Discussion:**

*Maya has expressed interest in hormone therapy. WPATH Standards of Care guidelines:*
- Comprehensive assessment confirms persistent, well-documented gender dysphoria
- Informed consent process (including with parents/guardians for minors)
- Mental health stability (achieved)
- Age-appropriate: Hormone therapy typically considered at age 16+

*Options to discuss:*
- Pubertal suppression (GnRH agonists): Pause puberty reversibly while allowing more time
- Feminizing hormone therapy: Estrogen + anti-androgen
  - Effects: Breast development, softer skin, fat redistribution, decreased facial hair growth
  - Timeline: Several months to years for full effects
  - Requires medical monitoring

**6. School Coordination:**
- Maya has already socially transitioned at school successfully
- May need support navigating parental involvement
- Ensure school remains supportive environment

### Key Teaching Points

**1. Being transgender is not a mental illness.**
Gender dysphoria is the distress from incongruence - and it is treatable.

**2. Mental health problems in transgender youth are caused by:**
- Minority stress
- Discrimination
- Family rejection
- Societal stigma
- NOT by being transgender

**3. Conversion therapy (attempting to change gender identity) is:**
- Ineffective
- Harmful
- Condemned by all major medical organizations
- Illegal in many jurisdictions for minors

**4. What improves outcomes:**
- Family acceptance (#1 protective factor)
- Social transition
- Gender-affirming medical care when appropriate
- Affirming mental health care
- Peer support

**5. Suicide risk:**
- Lifetime suicide attempt rate in transgender individuals: ~40%
- Family acceptance reduces this by approximately 50%
- This is a preventable tragedy

---

## Image Attribution

![Special Populations Psychiatry Framework](case_01_image.jpg)

*Image: Diagram illustrating unique psychiatric considerations across special populations including geriatric, perinatal, and LGBTQ+ populations with risk factors, protective factors, and treatment approaches. Source: Wikimedia Commons. Used for educational purposes under Creative Commons license.*
