title: Successful removal after radiotherapy and vascular embolization in a huge tentorial epithelioid hemangioendothelioma: a case report.
abstract: Intracranial epithelioid hemangioendothelioma (E-HE) is an extremely rare, vasoformative tumor with variable biological behavior. A huge E-HE confined to the upper side of the tentorium has not been documented previously. Recognizing E-HE as a specific vascular tumor is important, and complete tumor removal guarantees long-term survival. Here, we report an intracranial E-HE of a 24-year-old woman with the initial symptoms of progressive headache over several years. Magnetic resonance imaging revealed a huge tumor attached to the upper side of the right tentorium, with tentorial and tonsillar herniation, and secondary syringomyelia in the upper cervical spinal cord. The initial surgical attempt to remove the lesion was abandoned due to profuse bleeding from the tumor. One year after irradiation and 5 days after vascular embolization, the tumor could be removed totally. The final definitive diagnosis as E-HE was made by special immunohistochemical and electron microscopic study. The patient is free from the tumor 9 years after the second operation. Thus, E-HE is a highly vascular-rich tumor to excise, and we stress need for preoperative embolization and/or irradiation to remove huge tumor completely.
authors.affiliation: Department of Neurosurgery, Faculty of Medical Sciences, Fukui University, Matsuoka, Fukui, Japan. tkubott@fmsrsa.fukui-med.ac.jp
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Kubota
authors.forename: Kazufumi
authors.initials: K
authors.lastname: Sato
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Takeuchi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Handa
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy* / Q000628:therapy*; D003131:Combined Modality Therapy; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D018323:Hemangioendothelioma, Epithelioid / Q000175:diagnosis / Q000473:pathology / Q000532:radiotherapy* / Q000628:therapy*; D006801:Humans; D012086:Reoperation