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PITYROSPORUM ORBICULARE: INCIDENCE AND DISTRIBUTION ON CLINICALLY NORMAL SKIN
Author(s) -
ROBERTS S. O. B.
Publication year - 1969
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1969.tb13978.x
Subject(s) - pityriasis , trunk , scalp , incidence (geometry) , dermatology , biology , pathology , medicine , botany , physics , optics
SUMMARY. In a microscopical and cultural survey of clinically normal skin of patients attending a skin clinic with minor complaints P. orbiculare was found to be present on the scalp in 74% P. ovule was numerically the dominant species in this site but on the trunk P. orbiculare was nearly always the more numerous yeast and was present in more than 90% of subjects. The occasional finding of a few rod or filamentous forms similar to those seen in pityriasis versicolor was noted. This phenomenon was associated with a greater tendency than usual for the yeast to form germ tubes in culture. The significance of this is discussed.