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1: J Am Acad Dermatol. 1990 Jul;23(1):82-6.Links

Correlation of Pityosporum ovale density with clinical severity of seborrheic dermatitis as assessed by a simplified technique.

Heng MC, Henderson CL, Barker DC, Haberfelde G.

Department of Medicine, University of California, Los Angeles.

One hundred patients with facial seborrheic dermatitis and 42 control subjects were studied. The number of periodic acid-Schiff-positive Pityosporum ovale yeast cells in skin scrapings per high-power field were counted and designated 1 + to 4 +. Our data indicate a correlation between the density of P. ovale and the clinical severity of seborrheic dermatitis, both before and after therapy with a precipitated sulfur/salicyclic acid shampoo. The data support the concept that yeast contributes to the pathogenesis of seborrheic dermatitis.

PMID: 1694869 [PubMed - indexed for MEDLINE]