Notching of the carpal navicular.
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging / Q000473:pathology*; D002648:Child; D006801:Humans; D010003:Osteoarthritis / Q000473:pathology; D011859:Radiography; D014953:Wrist / Q000473:pathology* / Q000601:surgery