title: Mechanisms of edema after gamma knife surgery for meningiomas. Report of two cases.
abstract: The authors describe two patients in whom tumor swelling and brain swelling (and possible tumor swelling), respectively, developed after undergoing gamma knife surgery. One had a skull defect with a palpable parasagittal tumor. One had neurofibromatosis Type 2 with multiple tumors, one of which was parasagittal.
authors.affiliation: Gamma Knife Center, Cairo, Egypt.
authors.forename: Amr
authors.initials: A
authors.lastname: El Shehaby
authors.forename: Jeremy C
authors.initials: JC
authors.lastname: Ganz
authors.forename: Wael A
authors.initials: WA
authors.lastname: Reda
authors.forename: Ayman
authors.initials: A
authors.lastname: Hafez
mesh_terms: D000293:Adolescent; D000328:Adult; D000893:Anti-Inflammatory Agents / Q000627:therapeutic use; D000927:Anticonvulsants / Q000627:therapeutic use; D001929:Brain Edema / Q000150:complications / Q000188:drug therapy / Q000209:etiology* / Q000473:pathology; D003907:Dexamethasone / Q000627:therapeutic use; D004827:Epilepsy / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008577:Meningeal Neoplasms / Q000601:surgery*; D008579:Meningioma / Q000601:surgery*; D010672:Phenytoin / Q000627:therapeutic use; D011183:Postoperative Complications; D016634:Radiosurgery / Q000295:instrumentation*
chemical_list: D000893:Anti-Inflammatory Agents; D000927:Anticonvulsants; D010672:Phenytoin; D003907:Dexamethasone