Using Ultrasonography to Evaluate the Relationship between Capsular Invasion or Extracapsular Extension and Lymph Node Metastasis in Papillary Thyroid Carcinomas

Chinese Medical Journal
Wei-Ping Jiao, Lei Zhang

Abstract

Previous studies have demonstrated that ultrasonography is the recommended imaging modality for preoperative staging of papillary thyroid carcinomas (PTCs). However, only a few studies have kept watch on preoperative evaluation of capsular invasion (CI) or extracapsular extension (ECE) and cervical lymph node metastasis using preoperative ultrasonography. This study aimed to investigate the relationship between the CI or ECE and the cervical lymph node metastasis in PTCs using preoperative ultrasonography and postoperative pathology in Chinese patients. The data of preoperative ultrasonography and postoperative pathology of 166 patients who had a definitive diagnosis of PTCs from October 2011 to July 2014 at Xuanwu Hospital, Beijing were collected and reviewed. Preoperative ultrasonic parameters of thyroid nodules were compared with those of postoperative pathological diagnoses. All the patients were divided into bilateral PTCs group (n = 42, 78 nodules) and unilateral PTCs group (n = 124, 124 nodules), and the data of the nodule sizes, CI or ECE, and cervical lymph node metastasis by preoperative ultrasonography were compared between two groups. A total of 202 nodules of 166 patients which were confirmed by preoperative ultras...Continue Reading

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