Differential Diagnosis of an Elderly Manic-Depressive Patient with Depersonalization and Other Symptoms

Area of Science:

• Psychiatry
• Geriatric Psychiatry

Background:

• Presents a case study of an elderly male patient with persecutory delusions and peculiar complaints.
• Initial presentation included "no sense of time" and "no sense of money," along with refusal of care and delusions of death, suggesting Cotard's syndrome.

Purpose of the Study:

• To report and analyze a complex case of psychiatric diagnosis in an elderly patient.
• To discuss diagnostic challenges posed by atypical depressive symptoms and significant depersonalization/derealization.

Main Methods:

• Clinical case observation and psychiatric interview.
• Diagnostic assessment based on patient presentation and subsequent historical information.
• Treatment intervention for presumed depression, followed by observation of response.

Main Results:

• Initial treatment for depression led to temporary mania, followed by complete recovery.
• Post-recovery, a history of psychiatric hospitalizations led to a diagnosis of bipolar I disorder.
• The patient exhibited significant depersonalization and derealization, complicating the initial depressive state inference.

Conclusions:

• Atypical presentations, including altered time perception, can mask underlying bipolar disorder.
• Attentiveness to subtle symptoms like distorted time sense is crucial for accurate and timely diagnosis in geriatric psychiatry.
• This case underscores the importance of thorough history and symptom evaluation in complex psychiatric cases.