Trichophyton tonsurans infection manifesting as multiple concentric annular erythemas

Takeshi Ouchi, Keisuke Nagao, Yasuki Hata, Tomoko Otuka, Toyoko Inazumi

研究成果: Article査読

17 被引用数 (Scopus)


We report a case of dermatophytosis in a Judo wrestler caused by Trichophyton tonsurans (T. tonsurans) with clinical features that mimicked the concentric rings of tinea imbricata. Tinea imbricata is a unique dermatophytosis caused by Trichophyton concentricum (T. concentricum), observed endemically in subtropical to torrid zones and characterized by impressive concentric rings. We found three similar cases of the dermatophytosis in the literature that were reported as tinea pseudoimbricata or tinea indecisiva. All of these cases were associated with systemic or local immunosuppression, perhaps simulating the mechanism of tinea imbricata, which is known to involve the lack of delayed type hypersensitivity to T. concentricum. These cases imply that iatrogenic immunosuppression may perhaps play an important role in the development of the unique clinical features mimicking tinea imbricata. Furthermore, three of the four cases, including the presented case, were caused by T. tonsurans. It may be necessary to consider T. tonsurans infection when multiple concentric erythemas are encountered.

ジャーナルJournal of Dermatology
出版ステータスPublished - 2005 7月

ASJC Scopus subject areas

  • 皮膚病学


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