title: Alveolar hydatid cyst mimicking cerebellar metastatic tumor.
abstract: BACKGROUND
  Echinococcus multilocularis is a rare infestation in the world with a particularly increased incidence mainly in South America, Central Europe and Asia. Progression of alveolar Echinococcosis is more aggressive that can metastasize to lungs, brain and bones however brain involvement is usually rare with an incidence about 1%.
  
  
  METHODS
  We report a 23-year-old man with a cerebellar Echinococcosis multilocularis mimicking a metastatic cerebellar tumor. Suboccipital craniotomy was performed for gross total removal of the tumor. Histopathological specimens confirmed the diagnosis of Echinococcosis multilocularis.
  
  
  CONCLUSIONS
  Radical surgical excision should be recommended for single Echinococcosis multilocularis lesions particularly at infratentorial localization.
authors.affiliation: Ankara Numune Education and Research Hospital, Neurosurgery Clinics, Ankara, Turkey.
authors.forename: Cagatay
authors.initials: C
authors.lastname: Ozdol
authors.forename: Ali Erden
authors.initials: AE
authors.lastname: Yildirim
authors.forename: Ergun
authors.initials: E
authors.lastname: Daglioglu
authors.forename: Denizhan
authors.initials: D
authors.lastname: Divanlioglu
authors.forename: Esra
authors.initials: E
authors.lastname: Erdem
authors.forename: Deniz
authors.initials: D
authors.lastname: Belen