title: Meningioangiomatosis without neurofibromatosis simulating encephalitis in neuroimaging.
abstract: BACKGROUND
  Meningioangiomatosis (MA) is a rare entity characterized by a focal lesion that affects the leptomeninges and the cerebral cortex.
  
  
  METHODS
  We describe a case of a 32-year-old man diagnosed with MA not associated with hamartomatous lesions or with type 2 neurofibromatosis. Magnetic resonance images (MRI) showed an extensive parieto-occipital lesion and another right frontal lesion, initially suggestive of encephalitis. A biopsy of the meninges and brain was performed via a right parieto-occipital craniotomy. The histopathologic diagnosis, complemented by immunohistochemical studies, was MA.
  
  
  CONCLUSIONS
  Diagnosis of MA is very difficult based only on images, therefore lesions compromising the brain cortex, associated or not with calcifications, should be further examined through biopsy so as to have a precise diagnosis.
authors.affiliation: Department of Neurosurgery, Santa Casa Hospital de Belo Horizonte, MG, Brazil.
authors.forename: Everton
authors.initials: E
authors.lastname: Barbosa-Silva
authors.forename: Marcos
authors.initials: M
authors.lastname: Dellaretti
authors.forename: Gervásio Teles C
authors.initials: GT
authors.lastname: de Carvalho
authors.forename: Júlio Leonardo Barbosa
authors.initials: JL
authors.lastname: Pereira
authors.forename: Laelson
authors.initials: L
authors.lastname: Botrel
authors.forename: José Eymard H
authors.initials: JE
authors.lastname: Pittella
authors.forename: Atos Alves
authors.initials: AA
authors.lastname: de Sousa