[Multiple subcutaneous Trichophyton rubrum abscesses. Pathomorphosis of a generalized superficial tinea due to impaired immunological resistance].

A patient with chronic polyarthritis is reported who was treated with corticosteroids over several years and also received azathioprine. The patient developed extensive tinea pedum and corporis which was suddenly complicated by multiple subcutaneous abscesses caused by the same organism, Trichophyton rubrum. This type of dermatophytosis has only rarely been described. It shares some characteristics with the maladie dermatophytique of Hadida and Schousboe. Chronic granulomatous dermatophytoses such as granuloma trichophyticum Majocchi or tinea granulomatosa nodularis cruris or acute suppurative dermatophytoses of the kerion Celsi type present different clinical and histological pictures and develop under different pathogenetic conditions.