title: Imaging findings in external snapping hip syndrome.
abstract: We describe a case of external snapping hip diagnosed by dynamic sonography. The case prompted us to retrospectively review the imaging findings of children who clinically had presented with snapping hip. From this review we identified the features on MRI and CT of either thickening of the iliotibial band or thickening of the anterior edge of the gluteus maximus muscle as the cause of snapping and atrophy of the bulk of gluteus maximus muscle as an important secondary sign associated with snapping.
authors: Image Guided Therapy, Diagnostic Imaging, The Hospital for Sick Children, Toronto, Canada.
authors: Ganesh
authors: G
authors: Krishnamurthy
authors: Bairbre L
authors: BL
authors: Connolly
authors: Unni
authors: U
authors: Narayanan
authors: Paul S
authors: PS
authors: Babyn
mesh_terms: D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006621:Hip Joint / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging* / Q000503:physiopathology; D014463:Ultrasonography