title: Multiple pneumococcal pyarthrosis complicating rheumatoid arthritis.
abstract: Pneumococcal pyarthrosis was documented in seven and ten joints, respectively, in two patients with rheumatoid arthritis. The recognition of multiple pyarthrosis superimposed upon rheumatoid arthritis can be difficult. The present cases are compared with eight previously reported cases of pneumococcal arthritis in patients with rheumatoid arthritis.
mesh_terms: D001170:Arthritis, Infectious / Q000175:diagnosis / Q000209:etiology*; D001172:Arthritis, Rheumatoid / Q000150:complications*; D006801:Humans; D008875:Middle Aged; D011008:Pneumococcal Infections