To the Editor.—
In the article "Multiple Keratoacanthomata" (Arch Derm94:74-79, 1966), the assertion is made that in 1936 MacCormac and Scarff1 suggested that keratoacanthomata were derived from hair follicles. A similar statement can be found in an article by Rook and Champion.2Actually, MacCormac and Scarff suggested in their original article that the lesion probably arose from "hypertrophic and inflammatory changes in a sebaceous cyst." To the best of my knowledge, it was not until 1954 that Dupont3 suggested that "the most common origin of keratoacanthoma seemed to be the infundibulum of the hair follicles." Incidentally, Dupont, in 1930,4 was the first to describe the histological picture of keratoacanthoma.
Fisher BK. MULTIPLE KERATOACANTHOMATA. Arch Dermatol. 1966;94(5):680. doi:10.1001/archderm.1966.01600290154030
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