Coccidioidomycosis with cutaneous involvement.

Coccidioidomycosis is a fungal disease endemic in the southwestern United States and northern Mexico. Disseminated disease is often associated with a variety of skin lesions, including ulcerating or intact nodules with underlying sinus tracts. We have reported a case demonstrating that the diagnosis of coccidioidomycosis may be accomplished by histopathologic examination and culture of skin lesions, even when cultures from other sites are negative.