title: Iliopsoas bursal extension of lipohemarthrosis: A novel imaging finding associated with hip fracture.
abstract: Lipohemarthrosis is well known to be associated with intra-articular fractures throughout the body. Despite the relatively common occurrence of hip fracture and the frequency of communication between the hip joint and iliopsoas bursa, to the best of our knowledge, a fat-fluid level involving the iliopsoas bursa secondary to a hip fracture has not previously been reported. The following is a case report of a 48-year-old male who sustained an acute femoral neck fracture and was found to have distension of the iliopsoas bursa with a fat-fluid level resulting from extra-capsular extension of a lipohemarthrosis. The imaging findings, relevant anatomy, and potential importance of this finding for the detection of hip fracture are discussed.
authors.affiliation: Division of Musculoskeletal Imaging & Intervention, Department of Radiology, Brigham & Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA. gczuczman@partners.org.
authors.forename: Gregory J
authors.initials: GJ
authors.lastname: Czuczman
authors.affiliation: Division of Musculoskeletal Imaging & Intervention, Department of Radiology, Brigham & Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA.
authors.forename: Jacob C
authors.initials: JC
authors.lastname: Mandell
authors.affiliation: Division of Emergency Radiology, Department of Radiology, Brigham & Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA, 02115, USA.
authors.forename: Bharti
authors.initials: B
authors.lastname: Khurana
mesh_terms: D000058:Accidental Falls; D019644:Arthroplasty, Replacement, Hip; D002061:Bursa, Synovial / Q000000981:diagnostic imaging* / Q000473:pathology*; D003937:Diagnosis, Differential; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging* / Q000601:surgery; D006395:Hemarthrosis / Q000000981:diagnostic imaging* / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016658:Psoas Muscles / Q000000981:diagnostic imaging* / Q000473:pathology*; D014057:Tomography, X-Ray Computed
keywords: Bursa; Fat-fluid level; Femoral neck fracture; Hip; Hip fracture; Iliopsoas; Iliopsoas bursa; Intra-articular fracture; Lipohemarthrosis; Proximal femoral fracture