Contributor: Jesse Vislisel, MD
Cutaneous horns are conical accumulations of keratin that can be associated with a variety of benign and malignant lesions including seborrheic keratosis, verruca vulgaris, squamous cell carcinoma, and basal cell carcinoma. Because the responsible lesion underlies the horn, the base of the lesion must be biopsied to ascertain a diagnosis. The lesion in this photo was found to be secondary to verruca vulgaris.
Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.