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August 1972

Malignant Degeneration of an Epithelial Nevus vs Porokeratosis With Malignant Change

Author Affiliations

Morgantown, WVa

Arch Dermatol. 1972;106(2):264. doi:10.1001/archderm.1972.01620110088028

To the Editor.—  Swint and Klaus, in the Archives (101:56-58, 1970), reported a malignant change in an epidermal nevus.I believe their patient had porokeratosis. There is a cornoid lamella in the photomicrograph. Their clinical photo resembles the zosteriform porokeratosis which is easily confused with epidermal nevi.1Malignant change have been reported in porokeratosis.2,3,4