Any new growth from the intestinal mucosa growing into the intestinal cavity is called polyp, which is the clinical diagnosis, and eventually the pathological examination should prevail for histological diagnosis. At home and abroad widely used: adenomatous, misshapen, inflammatory and peanut polyps 4 types of points. In China, polyps are divided into tumorigenic and non-tumorigenic polyps, which I think is beneficial to clinical practice. Neoplastic polyps include adenoma and adenomatosis; others belong to non-neoplastic polyps, which have a very low chance of cancer.
Among them, adenoma is a precancerous lesion, pathologically can be divided into, tubular adenoma, with varying degrees of atypical hyperplasia, the chance of cancer up to 2-5%; choroidal adenoma, the chance of cancer is 10 times greater than tubular adenoma, broad-based choroidal adenoma cancer chance is particularly high; mixed type called tubular choroidal adenoma, the chance of cancer between the first two; polyp many symptoms are not typical, adenoma may be the first to blood, mostly The first symptom of adenoma may be blood, mostly occult blood, and then blood may gradually appear on the surface of the stool, and later there may be blood mixed with stool, but heavy bleeding is rare. A small number of polyps in the rectum can be prolapsed.
Adenomatosis is both adenoma, multiple, and genetic factors or other special performance syndrome of Chen Wei adenomatosis, these familial adenomatosis and GARDNER syndrome, etc. with special symptoms, complex, need professional doctors to diagnose, not to elaborate, in the symptoms are not typical, can be asymptomatic, may also diarrhea with mucus blood stool.
Non-neoplastic polyps, commonly consist of misfolded polyps, juvenile polyps, hyperplastic polyps, inflammatory polyps, dark spot polyp syndrome, etc.
Therefore, the presence of blood in the stool, mucopurulent blood stool, irregular abdominal pain and diarrhea, dental malformation, visual impairment, etc., should be especially differential diagnosis, should be cautious, not simply as hemorrhoids, enteritis misdiagnosis, at least should check the colonoscopy. In the treatment of any colorectal polyp should be found that is removed and sent to pathological examination, should first choose minimally invasive transanal surgery, transendoscopic removal, and then in the consideration of other intestinal segment resection anastomosis, caesarean section, etc.