title: Cauda equina compression revealing brown tumor of the spine in a long-term hemodialysis patient.
abstract: Brown tumors, or osteoclastomas, are erosive bony lesions arising as a complication of hyperparathyroidism (HPT). In patients with end-stage renal disease (ESRD), brown tumors are classic skeletal manifestations usually seen in severe forms of secondary HPT. However, involvement of the spine is considered extremely rare. We report a long-term hemodialysis case, in which cauda equina compression developed due to a sacral brown tumor. A decompressive surgery and subtotal parathyroidectomy were indicated to preserve neurologic function, and to ensure remineralization of the lesion. This case illustrates that, though rare, brown tumors should be considered in uremic patients with neurological symptoms. Emergent decompressive surgery is required to remove pressure on neurological structures and to stabilize the spine.
authors.affiliation: Department of Nephrology and Dialysis, Ibn Rochd University Hospital Center, 20100 Casablanca, Morocco. faissal76@hotmail.com
authors.forename: Faissal
authors.initials: F
authors.lastname: Tarrass
authors.forename: Amal
authors.initials: A
authors.lastname: Ayad
authors.forename: Meryem
authors.initials: M
authors.lastname: Benjelloun
authors.forename: Abdelkabir
authors.initials: A
authors.lastname: Anabi
authors.forename: Benyounes
authors.initials: B
authors.lastname: Ramdani
authors.forename: Mohamed Gharbi
authors.initials: MG
authors.lastname: Benghanem
authors.forename: Driss
authors.initials: D
authors.lastname: Zaid
mesh_terms: D000328:Adult; D002420:Cauda Equina / Q000000981:diagnostic imaging*; D012080:Chronic Kidney Disease-Mineral and Bone Disorder / Q000150:complications*; D019299:Decompression, Surgical; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000150:complications*; D007676:Kidney Failure, Chronic / Q000150:complications* / Q000628:therapy; D008297:Male; D009408:Nerve Compression Syndromes / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006435:Renal Dialysis; D014057:Tomography, X-Ray Computed