Widening of the radial notch of the ulna: a new articular change in haemophilia.
A new radiological sign has been observed in 14 of 236 elbows of haemophiliacs examined. This finding is a widening of the radial notch of the ulna, which may become extremely large.
D006467:Hemophilia A / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D014457:Ulna / Q000000981:diagnostic imaging*