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Medicine (Baltimore). 2018 Jun;97(23):e10999. doi: 10.1097/MD.0000000000010999.

Usefulness of preoperative ultrasonographic localization for diagnosis of a rare disease: Intrathyroid parathyroid lesions.

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Department of Ultrasound.
Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Department of General Surgery.


The aim of this article is to explore the value of ultrasonic diagnosis and localization of intrathyroid parathyroid diseases.The medical records of 15 patients with surgically confirmed intrathyroid parathyroid diseases were reviewed. We analyzed the diagnosis process and recorded sonographic features of these intrathyroid parathyroid lesions.The patients included 11 females (73%, 11/15) and 4 males (27%, 4/15) with a mean age of 46.2 ± 10.2 years and a mean lesion size of 2.1 ± 1.1 cm. A total of 11 intrathyroid parathyroid lesions in this study presented as hypoechoic (73.3%, 11/15). Nine lesions were located in the right lobe of the thyroid (60%, 9/15), and most of the lesions were located in the middle and inferior thyroid (80%, 12/15). All of the 15 intrathyroid parathyroid lesions were variable in shape and well defined. Only 1 lesion showed microcalcification, which was confirmed as parathyroid adenocarcinoma by the postoperative pathological diagnosis. The blood supply of 13 lesions was plentiful (86.7%, 13/15). A hyperechoic line on the parathyroid lesion was detected in 13 lesions (86.7%, 13/15). Based on the degree to which the parathyroid gland was embedded in the thyroid gland, 12 cases were classified as the complete type (80%, 12/15), and 3 cases were classified as the incomplete type (20%, 3/15). Ultrasound was used to diagnose 10 cases, and sestamibi-SPECT was used to diagnose 11 cases preoperatively; the 2 imaging methods were complementary.Ultrasonic preoperative localization could be helpful in the diagnosis and management of intrathyroid parathyroid diseases.

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