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May 1966


Author Affiliations

Department of Pathology University of Alberta Edmonton, Alberta, Canada

Arch Dermatol. 1966;93(5):633. doi:10.1001/archderm.1966.01600230137036

To the Editor:  I would like to comment on several points in regard to the article on "Degenerative Collagenous Plaques of Hands" published in the February issue of Archives of Dermatology by Drs. Ritchie and Williams.Since the publication by Dr. Burks and associates1 several other reports have appeared.2-4 Professor Oswaldo G. Costa devoted a chapter to this subject in his book on "Acroceratoses" published in 1962, and in a recent article Kocsard5 reported 15 cases.These peculiar palmar lesions occur predominantly in individuals whose professions require tool handling. Five of Drs. Ritchie and Williams' patients were farmers. In ten instances in Dr. Kocsard's series (seven right handed and three left handed individuals) the lesion was confined to the hand used for handling tools. Kocsard concluded that chronic pressure exerted by holding the various tools of trade is the main etiological factor leading to the formation of

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