How shall one designate the vesicular or squamous eruptions of the hands which accompany fungous infections of the feet? How is one to decide, in these cases, whether the eruption on the hands is caused by the fungous infection, by some external irritant or by some internal toxic condition? These questions are of great practical importance and confront the dermatologist in his contact with the many cases of this nature. We do not, of course, include in our consideration those cases of fungous infection of the feet which are accompanied by an eruption on the hands to which a definite cause can be assigned by the objective appearance, the history or patch tests. We are interested in the cases in which the explanation for the lesions on the hands is not quite so obvious and in which the only tangible evidence is the finding of fungi in the lesions of
TOLMACH JA, TRAUB EF, Williams CM. EPIDERMOPHYTIDS AND THE TRICHOPHYTIN REACTION. Arch Derm Syphilol. 1933;28(4):560–566. doi:10.1001/archderm.1933.01460040103013
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