[Endoscopic interventions in tumors of the pineal area, posterior regions of the III ventricle, and the posterior cranial fossa].

The study was undertaken to develop and introduce low-invasive differential endoneurosurgical correction of spinal fluid circulatory disorders in tumors of the pineal area, posterior portions of the third ventricle and the posteranial fossa. The authors present their experience in surgically treating 12 patients by using endoscopy. Surgical techniques, endoscopic semiotics of tumors of the above site, metastases along the liquor pathways are described. The outcomes of this treatment are analyzed. An algorithm of surgical treatment is proposed. Certain advantages of endoscopic interventions over conventional treatments in the treatment of tumor-induced occlusive hydrocephalus justify their inclusion into a comprehensive examination and treatment of patients of this study group.