title: Multiple hemorrhagic intraparenchymal tumors presenting with fatal intracranial hypertension: A rare manifestation of systemic epithelioid hemangioendothelioma.
abstract: BACKGROUND
  Epithelioid hemangioendotheliomas (EHE) is an extremely rare tumor that can arise not only intracranially but also systemically. Its radiological characteristics and the mechanism underlying the multiple organ involvement in EHE are poorly understood.
  
  
  METHODS
  A 24-year-old woman with a 7-month history of coughing and blood-stained sputum complained of visual disturbance in the right eye that had persisted for 1-month. Magnetic resonance (MR) imaging revealed multiple intraparenchymal masses with low-intensity on MR susceptibility-weighted images with minimal enhancement with gadolinium. Systemic computed tomography revealed multiple nodules in both lungs and the liver. Because her neurological status rapidly deteriorated, brain biopsy of the right frontal mass was performed. The pathological diagnosis was EHE. Over the following 3 months, the patient gradually developed disturbance of consciousness. She died at 4 months after admission because of significant intracranial hypertension.
  
  
  CONCLUSIONS
  Although intracranial EHEs are extremely rare, they should be included in the differential diagnoses of multiple small-sized masses with low-intensity on MR susceptibility-weighted images. We also emphasize that the systemic involvement of this tumor was more compatible with multicentric development than metastasis.
authors.affiliation: Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Tsuchiya
authors.affiliation: Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
authors.forename: Soichi
authors.initials: S
authors.lastname: Oya
authors.affiliation: Department of Radiology, Graduate School of Medicine and Faculty of Medicine, University of Tokyo, Tokyo, Japan.
authors.forename: Harushi
authors.initials: H
authors.lastname: Mori
authors.affiliation: Department of Neurosurgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
authors.forename: Toru
authors.initials: T
authors.lastname: Matsui
keywords: Epithelioid hemangioendothelioma; hemorrhagic brain tumor; liver tumor; multiple intracranial mass; pulmonary tumor