Metastasis rates of mucousadenocarcinoma and signet ring cell carcinoma are higher than those of well and mid differentiated carcinomas.
粘液腺癌和印戒细胞癌的转移率高于高分化和中分化腺癌；
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Histological type: 47patients had high differentiation adenocarcinoma, 27 median differentiation adenocarcinoma, 17 low differentiation adenocarcinoma, and 5 mucousadenocarcinoma.