Ultrasonographic Features and the Diagnostic Role of Core Needle Biopsy at Metastatic Breast Cancer in the Thyroid gland: A Case Report
이동현, 윤라경, 안진경, 우정주,
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이동현 ( Lee Dong-Hyun )
Eulji University College of Medicine Eulji Medical Center Department of Radiology
윤라경 ( Yoon Ra-Gyoung )
Eulji University College of Medicine Eulji Medical Center Department of Radiology
안진경 ( An Jin-Kyung )
Eulji University College of Medicine Eulji Medical Center Department of Radiology
우정주 ( Woo Jeong-Joo )
Eulji University College of Medicine Eulji Medical Center Department of Radiology
Abstract
Metastases to the thyroid gland have rarely been reported in clinical settings, and the thyroid gland is an uncommon site for breast carcinoma metastasis. We report a case of a 64-year-old breast cancer patient diagnosed with metastatic breast carcinoma in the thyroid gland after performing ultrasonography (US)-guided core needle biopsy (CNB) and subsequent total thyroidectomy. On US, the thyroid lesion appeared to be mildly enlarged with multiple internal hypoechoic lines and a few microcalcifications without mass formation. Under US-guidance, CNB was performed by targeting the area with microcalcifications and subsequently diagnosed as metastatic breast carcinoma. Total thyroidectomy revealed that the patient had metastatic invasive ductal carcinoma of the breast with lymphatic spread involving both lobes and the isthmus of the thyroid gland. Although the thyroid gland is an uncommon metastatic site, the unusual features of thyroid metastasis can be observed on US; thus, US-guided CNB effectively aids the diagnosis of thyroid metastasis.
키워드
Breast Neoplasms; Metastasis; Thyroid Gland; Ultrasonography; Core Needle Biopsy
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