title: I've been having pain in my elbow recently and was diagnosed with rheumatoid arthritis(RA).  What I didn't expect was hard lumps forming around my elbow area. Is this because of the RA, or due to something else?
mesh_terms: D001172:Arthritis, Rheumatoid / Q000473:pathology*; D004551:Elbow Joint / Q000473:pathology*; D006801:Humans; D012218:Rheumatoid Nodule / Q000209:etiology*