t<sub>2</sub>, t<sub>3</sub>胃癌の至適リンパ節郭清の検討

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  • A STUDY ON THE ADEQUATE EXTENT OF DISSECTION OF REGIONAL LYMPH NODES FOR t<sub>2</sub> AND t<sub>3</sub> GASTRIC CANCER

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Clinicopathological study was performed to know the adequate extent of dissection of regional lymph nodes for t2 and t3 gastric cancers. Positive ratio of the ly3 was higher in undifferentiated type and that of venous invasion was higher in differentiated type. As No.3 lymph node showed high possibility of metastasis, proximal ressection seemed to be out of indication for advanced cases. No.10 lymph node should be dissected for cancers in the MC portion located in the greater curvature or posterior wall and se cancers in the M portion. Correct dissection of No.1 lymph nodes is required even for mp cancers in the A portion. These results show that adequte dissection of regional lymph nodes is required for advanced gastric cancer considering the location and depth of invasion of the tumor.

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