Abstract
Introduction
Parathyroid sestamibi scan is routinely performed before parathyroid surgery. A large number of thyroid cancers take up 99mTc-sestamibi (MIBI). Since 2001, thyroid nodules discovered on sestamibi, nodules >2 cm, and/or with suspicious criteria were resected. The aim of this study was to evaluate the results of this policy.
Methods
All patients operated on for hyperparathyroidism, with a MIBI and cervical ultrasonography (US) with a thyroid resection for nodule, were retrospectively included.
Results
From 2001 to 2013, 685 patients were operated on for hyperparathyroidism. Some 137 (85 % females) had both preoperative MIBI and cervical US and a thyroid resection. The mean age was 63.2 ± 12.8 years. Sixty-three patients had a total thyroidectomy and 74 a lobectomy. Thirty-six patients had a thyroid cancer. The median size of cancers was 6.5 mm (0.3–22 mm), and 23 (16.7 %) patients had microcarcinoma. Among the 137 patients, 44 (32 %) had a MIBI+ nodule including 22 cancers. Sixty-one percent of malignant nodules were MIBI+ (22/36). The median size of MIBI+ cancers was 15 mm (9–22 mm) versus 2 mm (0.3–17 mm) for MIBI− cancers (p = 0.03). Twenty-two percent of benign nodules were MIBI+ (22/101). Finally, the sensitivity, specificity, positive predictive value, and negative predictive value of MIBI were 61, 78, 50, and 85 %, respectively.
Conclusion
Thyroid nodules incidentally discovered on MIBI in hyperparathyroidism patients should be resected.
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Greilsamer, T., Blanchard, C., Christou, N. et al. Management of thyroid nodules incidentally discovered on MIBI scanning for primary hyperparathyroidism. Langenbecks Arch Surg 400, 313–318 (2015). https://doi.org/10.1007/s00423-015-1286-y
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DOI: https://doi.org/10.1007/s00423-015-1286-y