Clinicopathological Study of Colon Cancer with Muscularis Propria Invasion
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概要
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Purpose: We identified appropriate colon cancer dissection area for muscularis propria (MP) invasion.<BR>Subjects and methods: Clinical outcomes were studied retrospectively in 84 MP cancer subjects based on tumor site. These were clinicopathologically compared to 180 subjects with subserosa invasion (SS cancer).<BR>Results: No difference was seen in left or right–side sites for curative surgery frequency, lymph node metastasis, or main or intermediate lymph node metastasis. Lymph node metastases were fewer at 23.8% in MP cancer with curative surgery than in SS cancer at 33.5% (p=0.08). No significant difference was seen in main or intermediate lymph node metastasis rates, recurrence in those with main or intermediate lymph node metastasis, or prognosis between MP and SS cancer.<BR>Conclusions: Main and intermediate lymph node dissection is recommended for MP cancer just as for SS cancer.
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