A ten-year-old boy with a pulmonary nodule secondary to Cryptococcus neoformans: case report and review of the literature.

Pulmonary cryptococcosis is an uncommonly recognized disease of childhood. Among immunocompetent and non-HIV-infected individuals, pulmonary cryptococcosis may be asymptomatic or present with chronic, nondescript symptomatology. In this report we describe a 10-year-old with malignant fibrous histiocytoma of bone and a pulmonary nodule secondary to Cryptococcus neoformans. We use this case as a background to review the pediatric literature regarding pulmonary cryptococcosis and to discuss the utility of immunohistochemistry for diagnosis of this clinical entity.