Objective:To explore the ultrasonic diagnostic points of thyroid bed lesions and recurrent cancer after thyroid cancer surgery.Methods:Patients who underwent total or partial thyroidectomy due to malignant tumors of the thyroid gland and received ultrasound follow-up at the Department of Ultrasound,Second Affiliated Hospital of Dalian Medical University from January 2021 to August 2023 were selected.The postoperative thyroid bed new lesions and cases confirmed by surgery or pathology as recurrent lesions were retrospectively analyzed.Results:A total of 275 patients were included in the study,of which 241(87.64％) had papillary carcinoma.Among the 202 patients with postoperative thyroid bed lesions,73.45％ were be-nign,11.64％ were malignant,and 14.91％ were non-diagnostic.Among these lesions,31 underwent FNA or surgery to obtain pathological results,of which 23(74.19％) were recurrent cancer and 8(25.81％) were benign.Among them,lymph node metas-tasis at the time of the first surgery (P=0.013) and the longer time interval between the appearance of thyroid bed lesions and the first surgery (P=0.04) were statistically significant.In the thyroid bed lesions without FNA,one case did not show signifi-cant changes in size and morphology during 5 years of follow-up and was considered benign.Three cases of lesions less than 6 mm were malignant.Conclusion:After thyroidectomy,most lesions in the thyroid bed are considered benign.Lesions larger than 6 mm or with preoperative lymph node metastasis are more likely to be malignant.Meanwhile,the longer the internal from the initial surgery,the greater the chance of new malignant lesions in the thyroid bed.
万方数据
维普
