| pubmed-article:7363551 | pubmed:abstractText | Erosion of the ulna, giving a notch-like appearance in the region of the supinator groove, is reported in 18% of 110 unselected outpatients attending a rheumatoid clinic. The characteristic radiological, arthrographic and scintigraphic findings are presented. The mechanism, significance and differential diagnosis is discussed. | lld:pubmed |
