NGHIÊN CỨU ĐẶC ĐIỂM LÂM SÀNG, SIÊU ÂM, TÌNH TRẠNG DI CĂN HẠCH TIỀM ẨN CỦA UNG THƯ BIỂU MÔ TUYẾN GIÁP THỂ NHÚ GIAI ĐOẠN CT1-2N0M0

Abstract

Objectives: Studying for clinical characters, ultrasound,  evaluation of  the occult cervical lymph node metastases status of thyroid cancer in stage cT1-2N0M0 at Head and Neck surgery Department, Viet Nam National Cancer hospital. Subjects and Method: Descriptive study on 192 patients of thyroid cancer in stage cT1-2N0M0, were treated by surgery at Head and Neck surgery Department, Viet Nam National Cancer hospital. Results: All patients had postoperative histopathology as papillary thyroid carcinoma. The rate of occult cervical lymph node metastasis was 45,8%. In particular, the rate of group VI metastasis and lateral lymph nodes in same side was 41.7%, 13,4%, respectively. Probably independent risk factor of cervical lymph node metastasisinclude: age <55, tumor size > 10mm, tumor located in thyroid isthmus. Conclusions: Papillary thyroid cancer has a high incidence of lymph node metastasis, especially group VI. Age <55(p=0,001, OR=0,266, 95%CI 0,115-0,614), tumor size > 10 mm(p=0,024, OR=3,118, 95% CI 1,117-8,7), tumor located in thyroid isthmus(p=0,046, OR=2,522, 95% CI 0,993-6,41).