Dermatophytosis of the skin, tinea -Trichophyton mentagrophytes

France, Contet-Audonneau Nelly

At the beginning, the erythematous lesion with spreading borders, is extending in a centrifugal way. It is annular, well delimited and of various size. Often lighter in the center and looking cicatricial, on the border, there is a raised ring of vesicles (ringworm).