Amnestic syndrome secondary to hypoxic brain injury

Diagnosis probable

Presentation

35 year old gentleman referred for assessment of rapid forgetting following heroin overdose. Unremarkable mental state and neurological examinations.

Patient Data

Age: 35
Gender: Male

Bedside cognitive testing

Diagram

Attention: 12/20

Visuoconstructional: 18/20

Memory: 7/20

Executive: 17/20

Language: 18/20

Total: 70/100

Prominent bilateral hippocampal T2 hyperintensity with restricted diffusion on DWI

Case Discussion

Unresolving amnestic syndrome associated with bilateral hippocampal lesions on acute imaging. The likely etiology is hypoxic-ischemic brain damage sustained in the course of heroin overdose.

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