Three Cases of Trichophyton rubrum Syndrome

Dermatophytoses are often observed coexisting fungal infections. Trichophyton (T.) rubrum syndrome is defined as the following obligatory criteria. (A) Skin lesions at the following four sites: (1) feet; (2) hands; (3) nails; and (4) at least one lesion in another location than (1) (2) or (3), except for groins. (B) Positive microscopic findings of KOH preparations of skin scrapings in all four locations. (C) Identification of T. rubrum by culture at three of the four locations at least. Three cases of T. rubrum syndrome is reported in a 50-year-old woman, in a 73-year-old man, and in a 55-year-old man.