title: Further experiences in the treatment of cystic craniopharyngeomas with yttrium 90 silicate colloid.
abstract: 20 patients suffering from cystic craniopharyngioma were treated with intracavitary irradiation on 25 occasions. The beta emitting radionuclide 90Y silicate colloid was instilled into the cyst or cystic part of the tumour. 17 patients on 22 occasions underwent follow-up CT and ophthalmological examinations 1 to 144 (average: 34) months after the intracavitary radioisotope therapy. An 23 occasions there was an average of 82 to 90% volume decrease of the craniopharyngioma cysts. On two occasions the volume has remained unchanged and the result of the 90Y therapy cannot be evaluated yet. The neuroophthalmological prognosis was good only when a relatively intact optic disc was seen; when the disc was atrophic the visual deterioration proved to be irreversible. Pathologically, it is the fibrotic tissue that is responsible for the shrinkage of the cyst.
authors.affiliation: National Institute of Neurosurgery, Budapest, Hungary.
authors.forename: J
authors.initials: J
authors.lastname: Julow
authors.forename: F
authors.initials: F
authors.lastname: Lányi
authors.forename: M
authors.initials: M
authors.lastname: Hajda
authors.forename: G
authors.initials: G
authors.lastname: Szeifert
authors.forename: M
authors.initials: M
authors.lastname: Simkovics
authors.forename: S
authors.initials: S
authors.lastname: Tóth
authors.forename: E
authors.initials: E
authors.lastname: Pástor
mesh_terms: D001932:Brain Neoplasms / Q000150:complications / Q000473:pathology / Q000532:radiotherapy*; D003102:Colloids; D003397:Craniopharyngioma / Q000150:complications / Q000473:pathology / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008297:Male; D017640:Silicates; D012824:Silicic Acid / Q000627:therapeutic use*; D012822:Silicon Dioxide / Q000627:therapeutic use*; D014786:Vision Disorders / Q000209:etiology; D015019:Yttrium / Q000627:therapeutic use*; D015021:Yttrium Radioisotopes
chemical_list: D003102:Colloids; D017640:Silicates; D015021:Yttrium Radioisotopes; D012824:Silicic Acid; C028301:yttrium silicate; D015019:Yttrium; D012822:Silicon Dioxide