title: Pectoralis pyomyositis: an unusual cause of chest wall pain in a patient with diabetes mellitus and rheumatoid arthritis.
abstract: We describe a case of isolated pectoralis swelling and tenderness, without systemic signs of infection, in a North American adult with diabetes mellitus and rheumatoid arthritis. The etiology was discovered to be pyomyositis, usually thought to be a disease of tropical climates. It is the first such case with group B Streptococcus as the causative organism.
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D003922:Diabetes Mellitus, Type 1 / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009220:Myositis / Q000175:diagnosis* / Q000209:etiology; D010369:Pectoralis Muscles; D013290:Streptococcal Infections / Q000175:diagnosis* / Q000209:etiology; D013292:Streptococcus agalactiae