The lesion was a cutaneous horn, or cornu cutaneum, a cohesive, keratotic, protuberant mass arising from the strateum corneum, or “horny layer.” Cutaneous horns are composed of compacted keratin, ...
Photo courtesy of Mayo Clinic A 35-year-old man presents with a chief complaint of purple discoloration of his toes and associated skin lesions that have been present for the past month. A 35-year-old ...
A black man, aged 40 years, came to the clinic for the treatment of growths on his toes that were making his shoes uncomfortable to wear. First noticed when he was a teenager, these growths had ...
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