|
|
-Case Reports-
Use of Ultrasonographic Shear Wave Measurements to Diagnose Thyroid Metastasis from Breast Carcinoma
1Department of Endocrine Surgery, Kanaji Thyroid Hospital, Tokyo, Japan
2Department of Endocrine Surgery, Nippon Medical School, Tokyo, Japan
3Department of Cytology, Kanaji Thyroid Hospital, Tokyo, Japan
4Laboratory of Biological Macromolecules, Department of Applied Life Sciences, Graduate School of Life & Environmental Sciences, Osaka Prefecture University, Osaka, Japan
5Department of Integrated Diagnostic Pathology, Nippon Medical School, Tokyo, Japan
6Department of Diagnostic Pathology, Shonan Fujisawa Tokushukai Hospital, Kanagawa, Japan
†Contributed equally
A metastatic thyroid tumor (MTT) arising from breast carcinoma (BC) is rare and sometimes difficult to diagnose. We present a case of MTT from BC; we suspected anaplastic thyroid carcinoma at initial presentation. The patient was a 58-year-old female with a hard nodule in the right anterior neck and a history of breast cancer. Computed tomography indicated tumors on both thyroid lobes, and ultrasonography (US) with shear wave measurement (SWM) showed malignant features. We performed fine needle aspiration cytology (FNAC), the results of which led us to strongly suspect MTT from BC. The surgically resected specimen was evaluated histopathologically, including by immunohistochemistry (IHC), and the diagnosis was confirmed. In addition to FNAC and IHC, SWM is useful to diagnose MTT from BC.
J Nippon Med Sch 2023; 90: 398-403
Keywords
metastatic thyroid tumor (MTT), breast carcinoma (BC), shear wave measurement (SWM), fine needle aspiration cytology (FNAC), immunohistochemistry (IHC)
Correspondence to
Tomoo Jikuzono, MD, PhD, Department of Endocrine Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
t-jikuzono@nms.ac.jp
Received, February 24, 2022
Accepted, April 13, 2022
PDF (998K)