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Updated: Oct 6, 2025
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Published on: December 21, 2019
Benign Parathyroid Hyperplasia With Incidental Pulmonary Seeding on 99mTc-MIBI Scintigraphy and FDG PET/CT
Yao-Kuang Tsai1, Chi-Jung Tsai1, Chuang-Hsin Chiu1
1From the Departments of Nuclear Medicine.
Abstract:
A 50-year-old woman with end-stage renal disease presented with recurrent hyperparathyroidism after parathyroidectomy. 99mTc-MIBI scintigraphy did not show MIBI-avid lesion in the neck or mediastinum but in bilateral lung fields instead. On suspicion of malignancy, 18F-FDG PET/CT was performed and depicted no significant FDG uptake throughout the whole body. After resection of the pulmonary nodules, the final histopathology revealed benign parathyroid hyperplasia with pulmonary seeding, which is exceptionally a rare entity.
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