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August 1973

Pityrosporum Folliculitis

Author Affiliations

Boston, Mass

Arch Dermatol. 1973;108(2):277. doi:10.1001/archderm.1973.01620230069030

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To the Editor.—  In the March issue of the Archives, Potter et al reported seven cases of pityrosporum folliculitis (107: 388, 1973). Two of their patients had diabetes. They made the point that these cases do not respond to tetracycline or the usual topical measures.In 1969 to 1970, I encountered two patients similar to the ones mentioned. In each case, the biopsy specimens revealed masses of spores in the section removed from the back. The first was a 25-year-old male artist who had been treated for the preceding year with tetracycline. He had been profusely perspiring for no apparent cause. The second patient was a 40-year-old housewife with positive latex fixation and mild rheumatoid arthritis who has never received steroid therapy.Successful therapy in these cases consisted of topically applied 20% aqueous sodium thiosulfate three times daily.The association of tinea versicolor and perspiring has been raised before.

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