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Article
April 1938

LXXX.—FURTHER STUDIES OF THE RELATION OF PITYROSPORUM OVALE TO SEBORRHEIC ECZEMA

Arch Derm Syphilol. 1938;37(4):616-626. doi:10.1001/archderm.1938.01480100069006
Abstract

Since the report1 of the successful culture of Pityrosporum ovale (bottle bacillus of Unna) a series of observations with this organism have been reported.2 Further studies have been undertaken; some of the previous studies have been repeated with a larger and more significant series of subjects, and further evidence is presented showing the relation of P. ovale to seborrheic eczema. Another clinical entity, blepharitis marginalis, was studied in order to determine the association of this disease with seborrheic eczema, as well as to present additional data relative to the possible pathogenicity of P. ovale.

MATERIALS AND TECHNIC  The patients used were for the most part adolescent and usually suffering from acne as well as seborrheic eczema. Not infrequently more than one type of inoculation was made on the same patient. Two types of tests, (1) scratching the skin of the chest and applying a whole culture of

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