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March 1984

Two Cases of Trichilemmal-like Horn

Author Affiliations

From the Department of Dermatology, The Kitasato Institute Hospital, Tokyo.

Arch Dermatol. 1984;120(3):386-387. doi:10.1001/archderm.1984.01650390108025

• We report two cases of cutaneous horn: one on the palm and one on the thumb. Microscopic examination of the lesion revealed trichilemmal-like keratinization that was unrelated to hair follicles. Each of these lesions most probably developed within a preexisting verruca vulgaris.

(Arch Dermatol 1984;120:386-387)