Nocardia brain abscess misinterpreted as cerebral infarction.

We present the case of a non-immunocompromised man with right-sided hemiparesis and aphasia thought to be caused by cerebral infarction, but which in the later clinical course evolved to be a nocardia brain abscess that needed surgical intervention. Misinterpretation of imaging combined with the absence of clinical signs of infection led to inadequate primary treatment