Moyamoya Disease- A Clinical Mimic for Psychiatric Disorders in the Emergency Setting: A Case Report.

Patient presentations to the emergency department for mental health evaluations are common, with an estimated 1 in 4 adult visits made for this reason. These presentations are often accompanied by vague symptomatology, which may make it difficult to determine if they are because of another medical condition. Previous evaluations may bias future presentations, leading to premature closure before correctly identifying a causative underlying medical condition.