Studie über einen Trichophyton - quinckeanum -Stamm mit ausgeprägter Fluoreszenz des Scutulums em Tierversuch

Abstract

A vesicular skin lesion which existed since 1 week in the lower part of the leg of a 45-year-old woman appeared to be caused by a fungus which was identified as Trichophyton quinckeanum (Zopf) MacLeod & Muende. The patient could not state to have had contact with animals.

Peroral administration of griseofulvin and local application of 2% salicyl — 5% sulfur — vaseline alternated with tonoftal cream healed the lesion completely. The fast growing fungus produced white, convoluted colonies with a brown, later wine-red reverse. Globose and club-shaped, one- and two-celled microconidia were formed especially ‘en thyrse’. The majority of the thin-walled macroconidia had rounded apices but a fusiform type of spore was also seen. Germination of the macroconidia was frequently observed.

Experimental infection into the dorsal skin of a white laboratory mouse produced a scutulum with a bright yellow later green fluorescence in Wood's light.

The taxonomy of Trichophyton quinckeanum is briefly discussed.

Zusammenfassung

Es wird über das Vorkommen eines Trichophyton-quinckeanum-Stammes berichtet, der aus einer menschlichen Hautläsion isoliert wurde und der im Tierversuch Scutulumbildung mit ausgeprägter grüner Fluoreszenz im Woodlicht zeigte.

Wir danken Frau E. Voigtländer für die Durchführung der fotografischen Arbeiten.