대장암에서 영역 림프절 전이 여부에 따른 재발 및 전이양상
Pattern of Recurrences and Metastases according to Regional Lymph Node Metastasis of Colorectal Cancer
박인자, 김희철, 유창식, 김진천,
소속 상세정보
박인자 ( Park In-Ja )
울산대학교 의과대학 외과학교실
김희철 ( Kim Hee-Cheol )
울산대학교 의과대학 외과학교실
유창식 ( Yu Chang-Sik )
울산대학교 의과대학 외과학교실
김진천 ( Kim Jin-Cheon )
울산대학교 의과대학 외과학교실
KMID : 0356720060220010047
Abstract
Purpose: We aimed to verify the pattern of recurrences or metastases of primary colorectal cancer according to regional lymph node metastasis and to use it for follow up.
Methods: A study was undertaken of 537 stage II and III patients who had undergone a resection of colorectal cancer between July 1989 and December 2002 and who had been identified as having a recurrence during follow up and of 439 stage IV patients who had undergone a resection of the primary tumor during the same period and who could be evaluated for regional lymph node status. Patients were classified into two groups according to regional lymph node status: no lymph node metastasis (214) and lymph node metastasis (762). Univariate and multivariate (Cox’s model) analyses of recurrence were employed to identify differences. Statistical significance was assigned to a P value of ＜0.05.
Results: In the lymph- node-metastasis group, female, poorly differentiated, and infiltrating type cancer were dominant. The patterns of recurrence were hematogenous in 729 cases (74.7%), local recurrence in 101 cases (10.3%), peritoneal seeding in 107 cases (11.0%), and lymph node recurrence in 116 cases (11.9%). Hematogenous metastasis was the most common type of metastasis or recurrence in both groups. Compared with the no-lymph-node-metastasis group, the rates of lymph node recurrence (P＜0.01) and local recurrence (P=0.02) were much higher in the were more frequent lymph-node-metastasis group. Local recurrence was frequent in rectal cancer, and the location of the primary tumor greatly influenced on local recurrence. Therefore, lymph node recurrence was strongly influenced by regional lymph node metastasis.
Conclusions: The pattern of recurrence differed according to the characteristics of the primary tumor. Especially, in the lymph-node-metastasis group, lymph node and local recurrences were more common than they were in the no-lymph-node-metastasis group. Therefore, lymph node metastasis should be considered for follow up. J Korean Soc Coloproctol 2006; 22:47-53
키워드
대장암;림프절 전이;재발;전이
Colorectal neoplasm;Lymph node metastasis;Recurrence;Metastasis
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