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The carriage of Malassezia furfur serovars A, B and C in patients with pityriasis versicolor, seborrhoeic dermatitis and controls
Author(s) -
ASHBEE H. R.,
INGHAM E.,
HOLLAND K. T.,
CUNLIFFE W. J.
Publication year - 1993
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.1365-2133.1993.tb00480.x
Subject(s) - pityriasis , seborrhoeic dermatitis , dermatology , medicine , carriage , serotype , malassezia , immunology , pathology
Summary The aetiological role of Malassezia furfur in various dermatoses is controversial. The role of the three serovars of M. furfur in Malassezia ‐associated diseases has not been investigated. This study measured population densities of M. furfur serovars A. Band C. propionibacteria and Micrococcaceae on the chest, back, forehead, left and right cheeks of 10 patients with pityriasis versicolor, and 10 age‐ and sexmatched controls: and 10 patients with seborrhoeic dermatitis, and 10 age‐ and sex‐matched controls. The population densities of M. furfur . propionibacteria and Micrococcaceae did not vary at a given site between patients and the corresponding control subjects. Malassezia furfu serovar A was found to be the predominant isolate on the chest and back of all four groups. but there was no difference in the distribution of serovars on the forehead and cheeks. No serovar was specifically associated with lesional skin in either disease. Thus, this data indicated that there was no difference in either the total population density of M. furfur or the distribution of serovars on lesional skin compared with control skin in either pityriasis versicolor or seborrhoeic dermatitis.