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April 1998

Persistent, Solitary, Erythematous, Hyperkeratotic Plaque

Author Affiliations
 

ANTOINETTE F.HOODMD

Arch Dermatol. 1998;134(4):499-504. doi:

Isolated epidermolytic acanthoma was first described in 1970 by Shapiro and Baraf1 as an acquired, solitary lesion showing features of epidermolytic hyperkeratosis (EH). They reported 7 cases, 6 having single and 1 having multiple lesions. The lesions were located on the anal region, calf, scrotum, leg, upper eyelid, and cheek. Clinically, the lesions of IEA are not diagnostic, and may resemble molluscum contagiosum, soft fibroma, carcinoma, and verrucae. In our case, the initial clinical findings suggested a solar keratosis, which persisted despite treatment with cryosurgery. Subsequently, the lesion became more like a prurigo nodule.

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