title: Fusiform superior cerebellar artery aneurysm treated with STA-SCA bypass and trapping.
abstract: BACKGROUND
  Fusiform aneurysms of cerebellar arteries are rare. Different surgical techniques to address these challenging lesions have been described, and their application depends on whether the goal is to maintain the flow in the parent vessel or to occlude it.
  
  
  METHODS
  The authors reported a case of a fusiform aneurysm located in the lateral pontomesencephalic segment of the superior cerebellar artery (SCA) in a 32-year-old man who presented with subarachnoid hemorrhage. The patient was subjected to aneurysm trapping followed by a bypass between the superficial temporal artery (STA) and SCA and had an uneventful recovery.
  
  
  CONCLUSIONS
  Although only a few cases of fusiform aneurysms in the supracerebellar artery have been reported in the literature, the treatment strategies adopted were diverse. In selected cases of patients in good neurological condition with ruptured fusiform aneurysms at the proximal segments of SCA and who have poor evidence of collateral supply, the possibility of a STA-SCA bypass with aneurysm trapping must be considered. A review of the current treatment modalities of this pathology is also presented.
authors: Department of Neurosurgery, Federal University of São Paulo, São Paulo, Brazil.
authors: Fabricio C
authors: FC
authors: Lamis
authors: Department of Neurosurgery, Federal University of São Paulo, São Paulo, Brazil.
authors: Manoel A
authors: MA
authors: De Paiva Neto
authors: Department of Neurosurgery, Federal University of São Paulo, São Paulo, Brazil.
authors: Sergio
authors: S
authors: Cavalheiro
keywords: Bypass; dissecting aneurysm; fusiform aneurysms; superior cerebellar artery aneurysm