title: Staged endoscopic operation for large pituitary adenomas.
abstract: The advantages of endoscopic transnasal pituitary surgery include a panoramic view of the area and easy reoperation. Based on this, we performed a planned staged operation in two cases of large pituitary adenomas, extending to the suprasellar lesion, using the endoscopic transnasal trans-sphenoidal approach via both nostrils. In the initial operation, a tumour mass was from the intrasellar region, however, that part of it in contact with the tumour capsule was left intact for prevention of peri-operative injury. The residual mass descended into the sellar floor at the second operation, and was easily resected with no complications. A staged operation by the endoscopic transnasal approach, although it requires two operations, is thought to be a safe and efficient procedure for the removal of large pituitary tumours.
authors.affiliation: Department of Otolaryngology, Graduate School of Medicine, Kyoto University, Kyoto, Japan. tnakagawa@hs.m.kyoto-u.ac.jp
authors.forename: Takayuki
authors.initials: T
authors.lastname: Nakagawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Asada
authors.forename: Tadayoshi
authors.initials: T
authors.lastname: Tadashima
authors.forename: Kenta
authors.initials: K
authors.lastname: Tomiyama
mesh_terms: D000236:Adenoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D000328:Adult; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D014786:Vision Disorders / Q000209:etiology; D014792:Visual Acuity