title: Endoscopic resection of colloid cysts: surgical considerations using the rigid endoscope.
abstract: OBJECTIVE
  Colloid cysts of the third and lateral ventricles have traditionally been treated by transfrontal and transcallosal microsurgical resection or by stereotactic aspiration. Recently, rigid and flexible ventricular endoscopic techniques have been used to treat these lesions. Our study was undertaken to examine the efficacy of rigid endoscopy in the resection of colloid cysts.
  
  
  METHODS
  Fifteen patients with a radiological diagnosis of colloid cysts were given the option of undergoing either endoscopic surgery or craniotomy. The average tumor size was 1.43 cm. Fourteen patients underwent planned endoscopic resections, and a craniotomy was performed initially in one patient.
  
  
  RESULTS
  Entire tumor resection was achieved with the endoscope in 12 patients (86%). A craniotomy was required for two colloid cysts that could not be resected endoscopically. In total, complete radiographic resections were achieved in 14 patients (93%). There were no permanent complications, although postoperative deficits included short-term memory loss and hemiparesis, each in one patient.
  
  
  CONCLUSIONS
  Rigid endoscopy affords good optical resolution, high magnification, and excellent illumination. Total or near total resection of colloid cysts should be the goal for all patients and can be achieved using the rigid endoscope, with little morbidity, shortened operative time, reduced length of stay, and resolution of symptoms. Although long-term follow-up is needed, we think that endoscopy should be considered as a primary treatment for most patients.
authors.affiliation: Department of Neurosurgery, Mount Sinai Medical Center, New York, New York, USA.
authors.forename: W A
authors.initials: WA
authors.lastname: King
authors.forename: J S
authors.initials: JS
authors.lastname: Ullman
authors.forename: J G
authors.initials: JG
authors.lastname: Frazee
authors.forename: K D
authors.initials: KD
authors.lastname: Post
authors.forename: M
authors.initials: M
authors.lastname: Bergsneider
mesh_terms: D000328:Adult; D000368:Aged; D001927:Brain Diseases / Q000175:diagnosis / Q000601:surgery*; D003102:Colloids; D003399:Craniotomy; D003560:Cysts / Q000175:diagnosis / Q000601:surgery*; D019723:Endoscopes; D004867:Equipment Design; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D014057:Tomography, X-Ray Computed
chemical_list: D003102:Colloids