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Patient Identification
Demographics: Young adult female, age-appropriate appearance.
Chief Complaint: Low mood, irritability, and anxiety of less than one week’s duration, associated with episodes of dissociation.
History of Presenting Illness
The patient reports being in her usual state of health until July 27, 2024, when she experienced an acute onset of abdominal discomfort during class. This was followed by a series of episodes suggestive of dissociative amnesia and fugue:
• Initial Episode: After requesting to use the restroom due to feeling faint, the patient returned to the classroom and collapsed. She reports total amnesia regarding the time spent in the restroom. Witnesses noted her “muttering without voices” (subvocalizing) during this period.
• Fugue State: Later that evening, she bypassed supervision and left her hostel room. She “awoke” on the ground floor with no recollection of how she navigated there from the second story. While peers suspected a fall, the lack of significant physical trauma makes this unlikely, suggesting purposeful but unremembered movement.
• Affective Symptoms: Over the past week, she has developed a pervasive low mood, decreased energy (anhedonia), poor concentration, and sleep disturbances. She denies “Beck’s Triad” (hopelessness, worthlessness, helplessness) and expresses no active or passive suicidal ideation.
• Anxiety & Dissociation: The patient describes significant fearful anticipation, chest discomfort, dyspnea, and trembling. Notably, she reports persistent depersonalization (feeling detached from herself) and derealization (feeling the world is unreal).
• Social/Behavioral: She exhibits a marked preference for solitude, citing increased irritability when interacting with family or peers.
• Self-Harm: A recent self-inflicted laceration to the non-dominant forearm was noted; the patient maintains amnesia regarding the intent or the act itself.
Mental Status Examination (MSE)
• Appearance & Behavior: Normal build; neatly dressed and groomed. Behavior is cooperative but notable for a preference for isolation.
• Speech: Spontaneous, coherent, and relevant. Rate, volume, and quantity are within normal limits.
• Mood & Affect: Subjective mood is reported as “irritable.” Objective affect is stable (no lability) and does not overtly mirror the reported depression or anxiety.
• Thought Content: No evidence of delusions, obsessions, phobias, or suicidal/homicidal ideation.
• Thought Process: Coherent and goal-directed; no flight of ideas or loosening of associations.
• Perception: Negative for hallucinations or illusions. Positive for depersonalization and derealization.
• Cognition: Oriented to time, place, and person. Formal testing reveals mild deficits in attention and concentration.
• Insight & Judgment: Good insight into the fact that her experiences are abnormal; judgment remains intact for daily functioning despite dissociative gaps.
Clinical Summary & Differential Diagnosis
The patient presents with a rapid onset of depressive and anxious symptoms, but the clinical picture is dominated by dissociative symptoms (amnesia, fugue, and depersonalization).
Primary Differentials to Consider:
1. Dissociative Amnesia with Dissociative Fugue: Given the episodes of wandering and loss of personal memory for specific events.
2. Mixed Anxiety and Depressive Disorder: To account for the somatic anxiety and low mood.
3. Complex Post-Traumatic Stress Disorder (C-PTSD): If a hidden stressor or trauma preceded the July 27th onset.
4. Neurological Evaluation: Required to rule out Complex Partial Seizures or post-ictal states, given the “muttering” and “falling” episodes.
Management Recommendations
• Safety Plan: Close monitoring due to the episode of amnesic self-harm.
• Neurological Workup: EEG and neuroimaging (MRI) to rule out organic causes of amnesia/loss of consciousness.
• Psychotherapy: Focused on grounding techniques for dissociation and identifying potential psychosocial stressors.
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