title: Subcutaneous granuloma annulare in a patient with rheumatoid arthritis and diabetes mellitus.
abstract: A case is reported of multiple subcutaneous nodules over the forehead and scalp of a 67-year-old male with moderately severe seropositive rheumatoid arthritis and corticosteroid-induced diabetes mellitus. The histology was initially reported as consistent with a rheumatoid nodule, but on review, was regarded as typical of subcutaneous granuloma annulare (SCGA). The nodules resolved spontaneously within 4 months, which is also in keeping with SCGA. A brief review of the relevant literature is presented.
authors.affiliation: Department of Dermatology, Austin and Repatriation Medical Centre (Repatriation Campus), Heidelberg West, Victoria, Australia.
authors.forename: M M
authors.initials: MM
authors.lastname: Tam
authors.forename: C J
authors.initials: CJ
authors.lastname: Meehan
mesh_terms: D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D003922:Diabetes Mellitus, Type 1 / Q000150:complications*; D003937:Diagnosis, Differential; D005546:Forehead; D016460:Granuloma Annulare / Q000150:complications* / Q000473:pathology; D006801:Humans; D008297:Male; D012535:Scalp