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大肠是恶性肿瘤及良性肿瘤的好发部位，如大肠癌、腺瘤和炎性息肉等。而大肠又是诸多病毒感染的器官之一，特别近年来国内实验报道了在大肠肿瘤病变中发现人疱疹病毒ＨＨＶ及ＥＢ病毒。为了探讨巨细胞病毒（ＣＭＶ）感染在大肠肿瘤中的检出率以及评估疱疹病毒对大肠肿瘤的致病
The large intestine is a good site for malignant tumors and benign tumors such as colon cancer, adenoma, and inflammatory polyps. The large intestine is one of the organs infected by many viruses. In recent years, domestic experiments have reported the detection of human herpesvirus HHV and Epstein-Barr virus in colorectal tumors. To investigate the detection rate of cytomegalovirus (CMV) infection in colorectal tumors and to assess the risk of herpes virus on colorectal tumors