This patient had a clavus, more commonly known as a “corn.” Corns are localized epidermal thickenings caused by repeated friction or pressure. They occur over bony protuberances, usually on the feet ...

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 ...