A Case of Steroid-Associated Expressive Aphasia.

Expressive aphasia (non-fluent aphasia) is characterized by the inability to produce words or sentences. The most common cause of expressive aphasia is stroke, usually due to thrombus or emboli in the middle cerebellar artery or internal carotid artery affecting Broca's area. We present an important, reversible, and previously undescribed cause of a purely expressive aphasia secondary to steroid use.