Pseudo-carcinomatous invasion in adenomatous polyps of the colon and rectum

摘要: The histology of pseudo-carcinomatous invasion in adenomatous polyps the colon and rectum is described appearances are contrasted with those seen malignant polyps. recognition important differential diagnosis benign large bowel. Failure to distinguish it from carcinoma may lead wrong treatment false reports incidence prognosis cancer rectum. evidence suggests that be result repeated twisting stalk a polyp which causes haemorrhage this facilitates passage non-malignant epithelium through muscularis mucosae.