Abstract
The investigation of prognostic factor for gastric cancer is still desirable because of dismal prognosis in gastric cancer. Lauren's classification is currently a useful histological classification. There are few large series evaluating the prognostic significance of Lauren's classification in gastric cancer. From January 1987 to December 2013, a total of 3071 patients received gastrectomy for gastric cancer. According Lauren's classification, 1423(46.3%) patients were intestinal type, 1000 patients (32.6%) were diffuse type, and 648 patients (21.1%) were mixed type. The clinicopathological characteristics and prognosis in Lauren's classification were analyzed in these patients. Our results showed that patients with intestinal type gastric cancer (57.7%) had a better 5-year overall survival than diffuse type (45.6%) and mixed type (43.4%, P < 0.001). The clinicopathological characteristics showed that gastric cancer patients with intestinal type were older (P < 0.001), male predominant (P < 0.001), smaller tumor size (P < 0.001), distal stomach predominant (P < 0.001), relative well differentiated (P < 0.001), less advanced Borrmann type (P < 0.001), less scirrhous type stromal reaction(P < 0.001), less infiltrating type of Ming's histology type(P < 0.001), less tumor invasion depth and less lymphovascular invasion (P < 0.001). Multivariate analysis with overall survival as an endpoint showed that age (P = 0.005), Borrmann classification (P < 0.001), pathological T category (P = 0.023), pathological N category (P < 0.001) and Lauren's classification (P = 0.003) were significant correlated in gastric cancer. Lauren's classification is an independent prognostic factor in gastric cancer patient undergoing gastrectomy. Lauren's classification can serve as a prognostic marker for gastric cancer patient receiving gastrectomy. The clinicopathological appearance and prognosis of mixed type gastric cancer is similar to diffuse type gastric cancer.
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