A Case of Pseudomycetoma due to Trichophyton Mentagrophytes / 대한피부과학회지

ABSTRACT

Dermatophytes have been demonstrated infrequently in viable tissues such as dermis, subcutis, lymph nodes, bones and other organs. Mycetoma-like lesions caused by dermatophytes, known as pseudomycetoma, have been very rarely reported. A 56-year-old woman presented with several protruding bean to chestnut-sized subcutaneous nodules on the occipital region of the scalp. She had a long term history of epidermolysis bullosa acquisita and intermittent administration of systemic corticosteroids for 5 years. Histopathology of the subcutaneous nodules showed a well encapsulated granuloma containing characteristic lobulated granules consisted of mycelial aggregates. Trichophyton mentagrophytes grew out on the cultures of Sabouraud's media with excised tissues. Surgical excision and itraconazole 200mg per day for 10 weeks was tried and skin lesions are improved with focal recurrence.