NGHIÊN CỨU SỰ LIÊN QUAN GIỮA KÍCH THƯỚC HẠCH VÀ DI CĂN HẠCH TRONG UNG THƯ ĐẠI TRÀNG

Abstract

Purpose: To determine the lymph node examines, lymph node metastasis (focus on the lymph nodes size : <5mm; 5 - < 10mm; 10 - < 20 mm and > 20 mm) ratio, and CEA status.  Evaluated the relationship between patient’s, charateristics,  CEA(+), lymph node size and lymph node metastasis status. Patient and methods: Prospective reseach of 63 cases colonic cancer, radically operated at Binh Dân Hospital from 12/2022  to 7/2023. The specimen were washed up. The tumor’s chareteristics (location, size, macro, micro, deep invasion, defferentiation chareteristics), CEA(+) were defined. The lymph node examines ratio and the lymph node metastasis ratio was determined. The relationship between the patient’s, chareteristics, CEA(+), lymph nodes size and the lymph node metastasis status were evaluated. Result: The most common age was > 40 (93,6%), ratio of male to female was 1,92. The disease is advanced at hospitalization; the tumor’s height of 2 cm or more was in 90%; tumor’s  perimeter > 1/4 colonic wall’s perimeter was in 91,2%; deep invasion T3 and more was 96,8%; the buds (macro type) was 63,5%; adenocarcinoma (micro type) was 83,1% and moderately defferented was 77,8%. The lymph node examines was 23,8/ patient, the lymph node metastasis ratio was 7,2%, and the ratio and the average lymph node metastasis ratio was 1,7 per patient, the CEA(+) was 34,9%. The lymph node metastasis status were related to lymph node size: Thelarger the lymph node, the higher the rate of lympho node metastasis. Lymph node < 5mm have a significant rate of lymph node metastasis.