title: The Accessory Sacroiliac Joint Diagnosed With Bone SPECT/CT.
abstract: The accessory sacroiliac (SI) joint is not rare and can be one of the causes of lower back pain. We present a case of a 35-year-old woman with chronic lower back pain. Conventional radiography was equivocal, and bone scintigraphy showed a focus of mildly increased uptake in left SI joint region. SPECT/CT revealed increased uptakes in the accessory articulations between both sacral alae and iliac bones, and confirmed the diagnosis of accessory SI joint. This case illustrates the SPECT/CT findings of the accessory SI joint.
authors.affiliation: From the Departments of *Emergency Medicine, †Nuclear Medicine, ‡Radiology, and §Rehabilitation Medicine, Presbyterian Medical Center, Jeonju, Jeonbuk, Republic of Korea.
authors.forename: Ji-Hun
authors.initials: JH
authors.lastname: Kang
authors.forename: Min-Woo
authors.initials: MW
authors.lastname: Kim
authors.forename: Eun Ha
authors.initials: EH
authors.lastname: Moon
authors.forename: Young Jun
authors.initials: YJ
authors.lastname: Kim
authors.forename: Ki Pi
authors.initials: KP
authors.lastname: Yu
mesh_terms: D000328:Adult; D001692:Biological Transport; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000000981:diagnostic imaging / Q000209:etiology / Q000378:metabolism; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging* / Q000378:metabolism; D000072098:Single Photon Emission Computed Tomography Computed Tomography