The exanthem of acute pulmonary coccidioidomycosis: Clinical and histopathologic features of 3 cases and review of the literature.

BACKGROUND Coccidioidomycosis may be associated with a reactive generalized cutaneous eruption early in the course of the illness. Detailed descriptions in the literature are scarce. OBSERVATIONS We describe 3 patients with a florid eruption associated with pulmonary coccidioidomycosis. The exanthem mimicked erythema multiforme clinically but not histologically. In 2 of the patients, the eruption began before the presence of detectable antibodies in the serum. CONCLUSION The presence of the exanthem, in combination with fever and/or pneumonia, was a helpful clue to the diagnosis of coccidioidomycosis.