A patient made a self-diagnosis of athlete&;s foot (tinea pedis) and began using a product adveised on television. The condition improved but did not clear and then the patient showed himself to a Dermatologist. A skin was sent to the laboratory for culture, including culture for fungi. The fungal culture yielded a slow growing colony, which produced a few small microconidia. This is consistent with isolation of a dermatophyte of the genera
High-Yield Explanation
Athletes foot - caused by Trichophyton rubrum and epidermophyton floccosum. Genus trichophyton - microconidia. Genus Microsporum and epidermophyton - macroconidia. Reference: Textbook of Microbiology; Baveja; 4th edition .