Magnetic resonance imaging of intracranial fungal infections.

Intracranial fungal infections have increased in incidence in the past decade caused in part by the acquired immunodeficiency syndrome (AIDS) epidemic. The biology, epidemiology, and appearance on computed tomography (CT) and magnetic resonance imaging (MRI) of the more common fungal infections of the central nervous system (CNS) will be reviewed. The radiographic appearance alone is often not specific, but the combination of the correct clinical setting along with the CT or MRI may help the radiologist suggest the correct diagnosis.