Lymph node metastasis in the space between the right carotid artery and jugular vein in papillary thyroid carcinoma.

J Int Med Res

Department of Head and Neck Surgery, The Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, ZheJiang, P.R. China.

Published: April 2020

Background: The oblique brachiocephalic trunk and right common carotid artery constitute the right carotid sheath space (RCSS). The aim of this study was to detect the clinicopathologic factors associated with RCSS lymph node metastasis.

Methods: In total, 232 papillary thyroid carcinoma (PTC) patients with preoperative contrast-enhanced computed tomography scans were analyzed for associations between RCSS lymph node metastasis and clinicopathological factors.

Results: Among the 232 cases, 18 (7.76%) had suspicious RCSS lymph nodes, which was correlated with the presence of >5 metastatic lymph nodes, a larger thoracic inlet, and primary tumor size >2.15 cm. All pathologically confirmed metastatic lymph nodes were >1 cm in diameter.

Conclusions: The concept of “RCSS lymph node metastasis” was first introduced by this study. For PTC patients, a larger thoracic inlet, increased number of metastatic lymph nodes, and larger primary tumor size were related to RCSS lymph nodes, and more attention should be paid to patients who have lymph nodes >1 cm. A future prospective study will be designed to identify the potential risk factors for RCSS lymph node metastasis.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7221171PMC
http://dx.doi.org/10.1177/0300060520920036DOI Listing

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