Villous adenomas

Outlined in the clinical disease also known as the villous adenoma, which is different from polypoid adenomas, Its characteristics are adenoma uplift in the intestinal wall is not very conspicuous. Villous surface was rough. As a result of the cancer and more opportunity to be considered pre-cancerous lesions. 60 years and older incidence styles, and occurred in the rectum and sigmoid colon adenoma papillary about 90%. In the many reports of papillary adenomas can be converted to cancer 75%. Cause pathogenesis of papillary adenomas were most widely-type growth, no long pedicle polyps, slightly higher for tumors normal mucosal surface, spread to the surrounding larger, typical cases, involving the intestinal track most weeks. Tumor found on the surface of velvet or coarse or coarse hair shape, color than polypoid adenomas slightly short, often covered by a layer of mucus. Tumor structure texture is relatively soft, with pliers touch it sponge-like. And there was massive pedicled papillary adenomas occurred rarely. Pathology observed tumor is characterized by a slim majority of papillary branch, the center of vascular connective tissue, found on the surface of single columnar epithelium or cladding and goblet cells, glandular structure fewer ingredients, which are scattered poorly, lesion mainly confined to the mucosa. More rarely, can be both polypoid adenomas. The main clinical manifestations of clinical manifestations of mucous discharge and defecting unfinished feeling, often misdiagnosed as mucous colitis and dysentery. Larger papilloma can emit a great deal of mucus may be discharged together with the faeces or mucus alone emit large amounts of diarrhea. daily output of up to 3000 mL of the above, often leads to severe dehydration, electrolyte imbalance, and circulatory failure. acidosis and other life-threatening symptoms. Due to the abnormal tumor cells function where a large number of liquid and mucous discharge. Inspection most clinical diagnosis of papillary adenomas digital rectal examination and rectal endoscopy or colonoscopy found. As adenoma very soft, and rectal palpation when adenoma very soft, need careful examination, it was easy to overlook. Papillary adenomas found to carefully lay hands on attending all adenomas, uniform texture and very soft, benign is the possibility of a larger structure. Palpable papillary adenomas small nodules and quality hardware will be required to alert the possibility of cancer. Palpable consultation check whether papillary adenomas in the early diagnosis of cancer is feasible to some extent. Palpable consultation was not quite sure of papillary adenomas can be transrectal mirror, mirror and sigmoid colon fiber endoscope Frederick consultation. To determine whether tumor may be cancerous, in adenoma surface and taken to different parts of the basement to make a biopsy. Surgery treatment.