A center's callosities

We present a case report of a 14-year-old white male who developed hyperker atotic plaques on the distal aspects of 2 toes. He was referred by his prim ary care physician for the treatment of onychomycosis. With questioning, th e patient stated that he played center for his high school basketball team. After physical examination, he was diagnosed with callosities caused by hi s basketball activities. Proper nail hygiene and wearing of larger footwear resulted in improvement of his callosities. Sports-related cutaneous injur ies should be included in the differential diagnosis of nail and toe abnorm alities.