To the Editor.—
I was delighted to read in the April issue of Archives of Dermatology (111:481, 1975) that Mills and Kligman had discovered the role of trauma in the production of acne lesions. It is interesting that they could not confirm the postulate of L. E. Gaul, MD, that rubbing might induce erythema and hyperkeratosis, causing poral closure and comedo formation. His study "Habitual Manipulations in Acne Vulgaris"1 discusses and illustrates these manipulations in 96 patients. Gaul's study was unknown to me when I delivered my lecture "The Role of Trauma and Other Thoughts About Acne"2 before the Association of Clinical Attendings in Dermatology on May 3, 1972, in New Haven, Conn; but his article ought to be read by those interested in this subject.Personally, I prefer the more euphonious term "acne traumatica" to the cumbersome and inelegant "acne mechanica" of Mills and Kligman.
Yaffee HS. Acne Traumatica. Arch Dermatol. 1976;112(3):408. doi:10.1001/archderm.1976.01630270070018
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