Human Infections with Microsporum gypseum Complex (Nannizzia gypsea) in Slovenia

Microsporum gypseum complex is a group of geophillic dermatophytes with a worldwide distribution and is a rare cause of dermatomycoses in humans. The infection most commonly presents as tinea corporis, with some geographical and occupational variations. We studied M. gypseum complex infections in patients examined in the Mycological Laboratory of the Department of Dermatovenereology, University Medical Centre Ljubljana, during the period 2000-2015. Diagnosis was confirmed by mycological examination. Skin scales were examined by direct microscopy and cultivated on Sabouraud glucose agar. A total of 226 patients were identified, representing 1.5% of all dermatophyte infections during the study period. Tinea corporis was diagnosed in majority of patients, followed by tinea manus, tinea faciei, tinea inguinalis and tinea pedis. Tinea capitis was observed in three and onychomycosis in two patients only. Infection was disseminated on different parts of the body in nine patients. In 39% of patients, infection was diagnosed in children younger than 9 years. Face and scalp infection was more often observed in children. The incidence was the highest during July and October. Contacts with soil and domestic animals were often reported. Data on the prevalence and clinical characteristics of M. gypseum complex infection in other countries are reviewed.