title: Gas-containing ganglia of the hip.
abstract: Three cases of ganglia related to the hip containing gas are presented. Gas may be shown by conventional radiography, linear tomography or computed tomography. All three cases had advanced degenerative disease of the joint. In degenerative disease, ganglia form through a pathway which allows the transfer of intra-articular gas into the ganglion. It is important to differentiate this phenomenon from overlying bowel gas and other causes of gas within soft tissues. It is the most specific radiological feature of ganglia around the hip.
authors.affiliation: Department of Diagnostic Imaging, Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire.
authors.forename: D A
authors.initials: DA
authors.lastname: Silver
authors.forename: V N
authors.initials: VN
authors.lastname: Cassar-Pullicino
authors.forename: B M
authors.initials: BM
authors.lastname: Morrissey
authors.forename: R J
authors.initials: RJ
authors.lastname: Etherington
authors.forename: I W
authors.initials: IW
authors.lastname: McCall
mesh_terms: D000368:Aged; D001845:Bone Cysts / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D005740:Gases; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography
chemical_list: D005740:Gases