To the Editor.—
The extensive list of skin conditions in which cutaneous horns have been observed includes actinic keratosis, squamous cell carcinoma, keratoacanthoma, Bowen's disease, seborrheic keratosis, basal cell carcinoma, hemangioma, Kaposi's sarcoma, keratotic and micaceous pseudopapillomatous balanitis, sebaceous adenoma, and Paget's disease of the female breast.1,2 We have recently followed a case in which a gigantic cutaneous horn occurred in a longstanding plaque of chronic discoid lupus erythematosus (DLE) of the nose.
Report of a Case.—
A 39-year-old white man had had a seven-year history of biopsy-proven DLE, consisting of two large atrophic plaques, with slightly infiltrated borders on the bridge of the nose and the malar area of the face. During the year prior to examination, a hyperkeratotic nodule arose in the DLE plaque on the nose and grew to 3 to 4 cm, despite repeated filings (Fig 1). After surgical removal of the lesion and subsequent
Dabski K, Stoll HL. Cutaneous Horn Arising in Chronic Discoid Lupus Erythematosus. Arch Dermatol. 1985;121(7):837–838. doi:10.1001/archderm.1985.01660070025008
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