Cerebral mass lesions in torulosis demonstrated by computed tomography.

Cryptococcus neoformans is an ubiquitous yeast. As a budding type of fungus, it is also known as Torula histolytica and is a common cause of infection of the central nervous system (CNS), particularly in debilitated and immunodeficient patients. We have examined 12 patients with computed tomography who had well documented cryptococcal CNS infection and will review our findings in this paper. Three of these patients had mass lesions, while nine others had a variety of changes such as ventricular dilatation, cortical atrophy, and focal ischemic changes.