title: Free sequestered disc herniation at the S2 level misdiagnosed as neuroma.
abstract: The case of a 38 year-old-man with a mass at the S2 level similar to a benign nerve root tumor (neuroma) is reported. The CT scan examination revealed the mass close underneath but not in connection with a disc herniation at the L5/S1 level. During operation the mass was not encountered as tumor but as free sequestered disc herniation, which was confirmed by histological examination. The reasons for considering the mass a tumor are discussed.
authors.affiliation: Department of Neurosurgery, Wagner Jauregg Krankenhaus, Linz, Austria.
authors.forename: A
authors.initials: A
authors.lastname: Witzmann
authors.forename: B
authors.initials: B
authors.lastname: Hammer
authors.forename: J
authors.initials: J
authors.lastname: Fischer
mesh_terms: D000328:Adult; D003951:Diagnostic Errors; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging*; D008297:Male; D009463:Neuroma / Q000000981:diagnostic imaging*; D010524:Peripheral Nervous System Neoplasms / Q000000981:diagnostic imaging*; D011859:Radiography; D012447:Sacrum; D013126:Spinal Nerve Roots