[Laparoscopic Resection of an Ectopic Endometriosis-Associated Carcinoma Arising in the Rectum-A Case Report]
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A woman in her seventies presented with mucous hematochezia. Colonoscopy revealed a poorly differentiated adenocarcinoma in the upper rectum. Immunohistochemical staining showed CK7 positivity and CK20/CDX2 negativity, findings atypical for primary colorectal ... ...
