Brown tumor secondary to primary hyperparathyroidism. Clinical case, set-up and role of the surgeon

Abstract

This work is focused on describing the most important characteristics of primary hyperparathyroidism and the bone involvement that this pathology produces, based on a clinical case of a patient attended at the Hospital de Clínicas (UDELAR) - Montevideo-Uruguay. Brown tumors (PT) are a rare abnormality of bone tissue caused by chronic hypersecretion of parathyroid hormone (PTH), the pathophysiology of which will be discussed throughout the text. They manifest clinically as tumors, which is of paramount importance since it is necessary to evaluate differential diagnoses. It frequently develops in long bones, which explains its topographic variability. The treatment of these lesions depends fundamentally on the control of hyperparathyroidism and the location of the tumor. Most of them remit when PTH levels are normalized.