title: Ligamentum flavum hematoma in the lumbar spine.
abstract: A patient who presented with symptoms suggestive of nerve root compression secondary to an extradural mass was found to have a hematoma in the ligamentum flavum. Pathological examination of surgical specimens revealed an old hemorrhage, and hemosiderin deposits around organized granulation tissue within the ligamentum flavum. Vessels within the ligamentum flavum had, presumably, ruptured during minor trauma when the patient stood up.
authors.affiliation: Department of Orthopaedic Surgery, Wakayama Medical College, 811-1 Kimiidera, Wakayama 641-8510, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Minamide
authors.forename: M
authors.initials: M
authors.lastname: Yoshida
authors.forename: T
authors.initials: T
authors.lastname: Tamaki
authors.forename: K
authors.initials: K
authors.lastname: Natsumi
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004547:Elastic Tissue / Q000473:pathology; D006097:Granulation Tissue / Q000473:pathology; D006406:Hematoma / Q000175:diagnosis*; D006470:Hemorrhage / Q000473:pathology; D006485:Hemosiderin / Q000032:analysis; D006801:Humans; D017843:Ligamentum Flavum / Q000473:pathology*; D008159:Lumbar Vertebrae / Q000473:pathology*; D008297:Male; D009408:Nerve Compression Syndromes / Q000175:diagnosis; D013126:Spinal Nerve Roots / Q000473:pathology; D013130:Spinal Stenosis / Q000175:diagnosis
chemical_list: D006485:Hemosiderin