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Figure 4 | BMC Gastroenterology

Figure 4

From: Small invasive colon cancer with systemic metastasis: A case report

Figure 4

Pathological results of endoscopic mucosal resection. (A) An intramucosal component corresponding to the depressed lesion was observed. The tumour formed a massive invasion below the muscularis propria. (B-1,2) The tumour was composed of poorly differentiated adenocarcinoma and signet-ring cell carcinoma, mostly formed by solidly proliferating cells but with some indistinct gland formation. (C) The tumour had an intramucosal component, but infiltrated deeply into the submucosal layer with severe lymphatic and venous invasion. (D) Extensive lymphatic and venous invasion was detected mainly under the muscularis propria.

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