[Clinical characteristics of 103 lymph node metastasis in advanced proximal gastric cancer].
OBJECTIVE
To explore the pattern of lymph node metastasis(LNM) in advanced proximal gastric cancer in order to guide lymphadenectomy.


METHODS
Between September 2001 and December 2005, a total of 103 patients with advanced proximal gastric cancer underwent radical gastrectomy with D2 or>D2 lymphadenectomy. The clinical characteristics, pathologic features, and LNM were analyzed by univariate and multivariate analysis.


RESULTS
LNM was observed in 81 of 103 cases(78.6%). The LNM was identified in 70.8% at N1, 38.3% at N2, 22.3% at N3. LNM frequency was found in groups No.3,No.1,No.2 and No.4Sa,4Sb (from the highest to the lowest) at N1, groups No.7, No.10, No.9, No.11, No.8a and No.4d at N2, and groups No.5, No.6, No.16 and No.12 at N3. Ordinal Logistic regression analysis showed that histopathological type, tumor size, depth of invasion, and distant metastasis were independent factors for lymph node metastasis in advanced proximal gastric cancer.


CONCLUSIONS
The number of lymph node metastasis in advanced proximal gastric cancer is mainly associated with differentiation, tumor size, depth of invasion, and distant metastasis. It is essential to dissect the lymph nodes according to the risk of lymph node metastasis.
Wu
Liang-liang
LL
Department of Gastric Cancer, Tianjin Cancer Hospital, Key Laboratory of Cancer Prevention and Treatment of Tianjin City, Tianjin Medical University, Tianjin 300060, China.
Liang
Han
H
Wang
Xiao-na
XN
Liu
Xiang-yu
XY
Han
Tao
T
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000473:pathology*