Identifying medical mimics for late-life mania: A case of prion disease.

Sporadic Creutzfeld Jakob Disease is a rare disease with diagnostic challenges. While there is very little human data regarding this disease, some studies have indicated that certain medications may be useful in slowing its progression. Case study data implies psychiatric and cognitive symptoms preceding the diagnosis. This single case report presents a 68-year-old male with suspected late-onset bipolar disorder, later found to have sporadic Creutzfeld Jakob Disease. The patient was treated with lithium for this purported bipolar disorder. Approximately 2 years later, the patient met the Center for Disease Control (CDC) diagnostic criteria for prion disease following a rapid decline in cognition. This case provides an example of a medical mimic of bipolar disorder in the geriatric population.