Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 52 6 2014 06 15 484 487 EN Babak Mirzashahi Department of Orthopedic Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Mohammad Vahedian Ardakani Department of Orthopedic Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran. Abdonaser Farzan Department of Neurosurgery, Mofid Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2015 10 11 Brown tumors may occur secondary to hyperparathyroidism in patients with chronic renal failure (CKD). They are increasingly rare because hyperparathyroidism in now diagnosed and treated at an early stage. We report 67-year-old man who had been on hemodialysis for CRF for over 3 years, who presented with back pain over the thoracolumbar junction from 2 years ago and because of pain he could not stand or walk in the last 3 months before surgery. Ambulation was regained after surgical decompression and stabilization. In conclusion, when brown tumor arises in the spine, surgery may be needed to preserve neurologic function. https://acta.tums.ac.ir/index.php/acta/article/view/4774 https://acta.tums.ac.ir/index.php/acta/article/download/4774/4474