A special technique of biopsy by excision of a fusiform specimen is described and recommended for keratoacanthomas. This method furnishes an ideal specimen for histopathologic examination and permits observation of the remainder of the lesion for the likelihood of spontaneous involution.
POPKIN GL, BRODIE SJ, HYMAN AB, ANDRADE R, KOPF AW. A Technique of Biopsy Recommended for Keratoacanthomas. Arch Dermatol. 1966;94(2):191–193. doi:10.1001/archderm.1966.01600260083010
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