Rheumatoid nodule

From Wikipedia, the free encyclopedia

A rheumatoid nodule is a collection of normal cells including lymphocytes, and fibroblasts that surround a center of fibrinoid necrosis. They are usually subcutaneous especially over boney prominences such in the olecranon. About 5% of rheumatoid arthritis patients have such nodules within 2 years of disease onset, and the cumulative prevalence is about 25%.[1]

  1. ^ Carmona L, González-Alvaro I, Balsa A, Angel Belmonte M, Tena X, Sanmartí R. (Sep), “Rheumatoid arthritis in Spain: occurrence of extra-articular manifestations and estimates of disease severity.”, Ann Rheum Dis. 2003 Sep;62(9):897-900.: 897-900, 2003, <http://www.ncbi.nlm.nih.gov/pubmed/12922967?ordinalpos=10&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum> .