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. 2022 Jan 27;12:789310. doi: 10.3389/fendo.2021.789310

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Copyright © 2022 Gao, Luo, He, Cheng and Yang

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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A papillary thyroid carcinoma (PTC) patient (35-year-old male, 1.5 cm nodule) with central cervical lymph node metastasis (CLNM) and positive BRAF^V600E mutation. (A) The thyroid nodule had a low echo, microcalcifications, and irregular morphology on US images. (B) Color doppler flow image (CDFI) showed a lack of blood supply inside the nodule. (C) Pathologic examination confirmed the diagnosis of PTC. (D) Pathologic examination confirmed the diagnosis of central CLNM.