title: Obturator internus muscle abscess in a child: a case report.
abstract: The authors report a case of abscess in the obturator internus muscle, which is a rare occurrence. It was managed with antibiotics and surgical intervention was not necessary. Pyomyositis involving the muscles around the hip needs to be differentiated from septic arthritis and transient synovitis of the hip because these pathologies more commonly afflict this joint. However, when present, abscesses usually affect the psoas or the glutei. Only rarely is the obturator internus involved by the abscess. Magnetic resonance imaging is the imaging modality of choice to image the obturator internus and to ascertain the diagnosis. Lack of awareness of the existence of this condition leads to a delay in the correct diagnosis.
authors.affiliation: Alder Hay Hospital, Liverpool, UK. manbansal@hotmail.com
authors.forename: Manish
authors.initials: M
authors.lastname: Bansal
authors.forename: Vijay
authors.initials: V
authors.lastname: Bhaliak
authors.forename: Colin E
authors.initials: CE
authors.lastname: Bruce
mesh_terms: D000038:Abscess / Q000175:diagnosis* / Q000188:drug therapy; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D001774:Blood Chemical Analysis; D002648:Child; D003937:Diagnosis, Differential; D004359:Drug Therapy, Combination; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D007262:Infusions, Intravenous; D008279:Magnetic Resonance Imaging; D010146:Pain / Q000175:diagnosis / Q000209:etiology; D016658:Psoas Muscles; D052880:Pyomyositis / Q000175:diagnosis* / Q000188:drug therapy; D018570:Risk Assessment; D012720:Severity of Illness Index; D013203:Staphylococcal Infections / Q000175:diagnosis* / Q000188:drug therapy; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents