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Clin Nucl Med. 2009 Mar;34(3):178-9. doi: 10.1097/RLU.0b013e318196758c.

F-18 FDG-avid intrathyroidal parathyroid adenoma mimicking follicular neoplasm.

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1
Department of Internal Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

A 64-year-old woman was biochemically diagnosed with hyperparathyroidism. Technetium-99m sestamibi parathyroid scan demonstrated persistent uptake in the left lower pole of the thyroid. She underwent F-18 FDG PET due to unrelated causes. Incidentally, we found focal FDG accumulation in the lower portion of left thyroid lobe. An ultrasound showed a 2.2-cm nodule containing cystic component in the left lower pole of the thyroid. The intact PTH level in the cystic fluid was much higher than the serum intact PTH level, suggesting an intrathyroidal parathyroid adenoma. Left lobectomy revealed an intrathyroidal parathyroid adenoma in the left thyroid lobe.

PMID:
19352286
DOI:
10.1097/RLU.0b013e318196758c
[Indexed for MEDLINE]
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