title: Metastatic adenocarcinoma mimicking unilateral sacroiliitis.
abstract: Back pain is a common clinical syndrome that may be the expression of an uncommon pathological process. We describe an unusual case of adenocarcinoma mimicking unilateral sacroiliitis. When progressive symptoms are unresponsive to conventional therapy, diagnosis should always be reconsidered, with appropriate imaging studies. We discuss mechanisms of joint space involvement and review the literature.
authors.affiliation: Division of Rheumatology, Toronto Hospital, ON.
authors.forename: S M
authors.initials: SM
authors.lastname: Humphrey
authors.forename: R D
authors.initials: RD
authors.lastname: Inman
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging* / Q000556:secondary; D000328:Adult; D001168:Arthritis / Q000000981:diagnostic imaging*; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D003937:Diagnosis, Differential; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis; D008175:Lung Neoplasms; D008297:Male; D011877:Radionuclide Imaging; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging*; D016698:Technetium Tc 99m Pyrophosphate; D014057:Tomography, X-Ray Computed
chemical_list: D016698:Technetium Tc 99m Pyrophosphate