Observations on Epidermophyton Rubrum or Trichophyton Purpureum
1933; Taylor & Francis; Volume: 25; Issue: 2 Linguagem: Inglês
10.1080/00275514.1933.12020655
ISSN1557-2536
Autores Tópico(s)Plant Pathogens and Fungal Diseases
ResumoEpidermophyton rubrum belongs to the pathogenic fungi which are rather common in the United States. In Weidman's (1) statistics of American species obtained from 272 cases of epidermophytosis and onychomycosis, Epidermophyton rubrum was the third organism in order of frequency (17 cases). Epidermophyton (or Trichophyton) interdigitale was the most frequent (140 cases) followed by Epidermophyton cruris (54 cases). In our clinic during a period of twenty-three months cultures of various fungi imperfecti were grown from 109 cases of fungous infection of the glabrous skin and nails. As in Weidman's series, Epidermophyton rubrum was third in frequency (17 cases), Epidermophyton inter? digitale being first (55 cases) and Microsporon second in order of frequency (21 cases). Considerable variations in gross as well as microscopic morphology of cultures make the identification of Epidermophyton rubrum at times rather difficult. The following brief review of literature makes this point obvious. Castellani (2) first described this fungus in 1910 and called it Epidermophyton rubrum. Cul? tures on glucose and maltose agar isolated from cases of Tinea cruris were red and showed either a central knob or a crateriform
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