title: To biopsy or not to biopsy: an 82-year-old patient with a retroperitoneal mass and severe low back pain.
abstract: An 82-year-old patient was admitted to our ward due to disabling severe low back pain. Computed tomography of the spine revealed a retroperitoneal space-occupying lesion encroaching on two adjacent lumbar vertebrae and causing destruction of the cortex of their anterior aspect. The patient was scheduled for a biopsy of the mass. Magnetic resonance (MR) of the lumbar spine, however, suggested that the mass was most probably an aortic aneurysm. The biopsy was cancelled and the patient was referred for surgical intervention. MR is indicated in the evaluation of a solid mass causing vertebral destruction in order to achieve an accurate preoperative diagnosis and prevent a hazardous invasive procedure.
authors.affiliation: Department of Internal Medicine C, Assaf Harofeh Medical Center, Zerifin 70300, Israel.
authors.forename: Moshe
authors.initials: M
authors.lastname: Horowitz
authors.forename: Gabriella
authors.initials: G
authors.lastname: Gayer
authors.forename: Yaacob
authors.initials: Y
authors.lastname: Itzchak
authors.forename: Micha J
authors.initials: MJ
authors.lastname: Rapoport