title: An exceedingly rare localization of a brown tumor in a hemodialysis patient.
abstract: Brown tumor, which is seen in the context of hyperparathyroidism, is defined as a uremic bone disease characterized by increased osteoclastic activity and fibroblastic proliferation in the involved bone. In chronic renal failure, there is an excessive parathyroid hormone secretion due to hypocalcemia, hyperphosphatemia, and vitamin D deficiency. Brown tumor of the femur, facial bones, mandible, sternum, ribs, and pelvis are rare, whereas, it rarely involves sacrum. Here, we presented a brown tumor of the sacrum that developed secondary to parathyroid hyperplasia in a patient receiving hemodialysis.
authors.affiliation: Department of Nephrology, Meram Training and Research Hospital, Konya, Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Karagoz
authors.forename: Kultigin
authors.initials: K
authors.lastname: Turkmen
authors.forename: Raziye
authors.initials: R
authors.lastname: Yazici
authors.forename: Sevket
authors.initials: S
authors.lastname: Arslan
authors.forename: Suleyman
authors.initials: S
authors.lastname: Baktık
authors.forename: Meryem Ilkay Eren
authors.initials: MI
authors.lastname: Karanis
authors.forename: Lutfullah
authors.initials: L
authors.lastname: Altintepe
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Guney
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000209:etiology* / Q000473:pathology; D001842:Bone and Bones / Q000473:pathology*; D005260:Female; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000150:complications / Q000473:pathology*; D007676:Kidney Failure, Chronic / Q000150:complications* / Q000628:therapy*; D010010:Osteoclasts / Q000473:pathology; D010280:Parathyroid Glands / Q000473:pathology; D006435:Renal Dialysis / Q000009:adverse effects*; D012447:Sacrum / Q000473:pathology*