Relationship between pressure and digital vasculitis in rheumatoid disease.
The sites of 92 rheumatoid nailfold lesions were compared with sites of pressure as indicated by tissue blanching during gripping. A close correspondence between sites of blanching and sites of vasculitis was found, and this is discussed in relation to the possible role of vascular compression and blood stasis in the development of rheumatoid vasculitis.
D001172:Arthritis, Rheumatoid / Q000150:complications*; D005385:Fingers / Q000098:blood supply*; D006801:Humans; D009262:Nails; D011312:Pressure; D014657:Vasculitis / Q000209:etiology*