The patient is a native of the State Falcon / Venezuela. There are sandy deserts and dunes, so called "médanos", the habitat of the dimorphic fungus Coccidioides immitis. Its mycelial form grows in the sand and in the cultures at room temperatures as hyphae with arthrospores which we illustrate here. The pulmonary infection of the patient certainly took place in that region, because only in this region occur such fungal infections in our country. Now a dissemination of this fungus infection must have occurred.