[Endoscopic neodymium YAG laser therapy of colorectal adenomas and cancers].

Endoscopic Nd:YAG laser therapy (lambda = 1.06 microns; 80-100 W) of colorectal neoplasia is indicated in: 1. Premalignant, sessile adenoma. After snare resection for histologic estimation of dignity laser ablation is curative when it is benign. 2. Obstructed colorectal cancer can be recanalized preoperatively to perform orthograde bowel lavage, total colonoscopy and elective primary tumour resection. 3. Inoperable colorectal cancer can be irradiated palliatively by the laser to arrest bleeding, to avoid obstruction and to reduce protein and electrolyte secretion.