Fracture of the ulnar sesamoid bone of the thumb.
D000328:Adult; D001265:Athletic Injuries / Q000000981:diagnostic imaging*; D050723:Fractures, Bone / Q000000981:diagnostic imaging*; D006801:Humans; D008022:Ligaments / Q000293:injuries; D008297:Male; D011859:Radiography; D012716:Sesamoid Bones / Q000000981:diagnostic imaging / Q000293:injuries*