title: Perineural spread of endometriosis along the obturator nerve into the adductor thigh compartment.
abstract: We report the case of a young woman with recurrent unilateral hip pain. A polylobular cystic mass was found in the right adductor space. Magnetic resonance imaging (MRI) revealed a polynodular mass migrating from the intrapelvic region along the obturator nerve. Because of a history of cyclic pain and the characteristics on MRI (hypointense rim and spots of spontaneous hyperintense signal on T1-weighted images), an endometrioma was suspected. The diagnosis of endometriosis was later confirmed through ultrasound-guided biopsy.
authors.affiliation: Department of Radiology, University Hospitals of Leuven, Herestraat 49, 3000 Leuven, Belgium. pieter.waer@uzleuven.be
authors.forename: Pieter
authors.initials: P
authors.lastname: Waer
authors.forename: Ignace
authors.initials: I
authors.lastname: Samson
authors.forename: Friedl
authors.initials: F
authors.lastname: Sinnaeve
authors.forename: Raf
authors.initials: R
authors.lastname: Sciot
authors.forename: Steven
authors.initials: S
authors.lastname: Pans
mesh_terms: D000328:Adult; D004715:Endometriosis / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009776:Obturator Nerve; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis* / Q000473:pathology; D013848:Thigh