Emine Göknur Işık, Ebru Yılmaz, Serkan Kuyumcu, Duygu Has, Mehmet Fatih Geçer, Seher Nilgün Ünal, Işık Adalet

Istanbul University, Istanbul Medical Faculty, Department of Nuclear Medicine, İstanbul Turkey


Primary hyperparathyroidism is a disease characterized by hypercalcemia due to overproduction of parathyroid hormone by one or more parathyroid glands. With widespread
use of laboratory tests, bone lesions are less encountered in primary hyperparathyroidism. A woman with cystic lesion in left ulnar bone on plain radiographs was diagnosed with mediastinal parathyroid adenoma on parathyroid scintigraphy that was performed due to findings suggesting metabolic bone disease and brown tumor on bone scintigraphy. Herein we aimed to highlight the utility of bone scintigraphy in depicting metabolic bone disease and importance of dual phase Tc99m-MIBI parathyroid scintigraphy in ectopic localization of parathyroid lesions.