Sylvian subarachnoid and extra-pial cavernous angioma

J. Lenzi, A. Seferi, A. Nardone, M. Salvati, G. Vreto, A. Santoro, A. Raco, A. Pichierri, M. Petrela

Research output: Contribution to journalArticlepeer-review


Cavernous angiomas are one of the four types of vascular malformations of the central nervous system. Lesions situated subarachnoidally are rare although some cases with an infratentorial localization have been reported. Our case represents an unusual localization of a subarachnoid cavernous angioma. A 35- year-old patient was admitted to our department with signs of subarachnoid hemorrhage. A 1 cm hyperdense lesion placed at the right Sylvian fissure was distinguished by CT-scan examination and no arterial supply was revealed on cerebral angiography. Surgical intervention showed a lesion placed extra-pial and totally encased in the subarachnoid space in the superficial part of the Sylvian cistern. This case represents a radiologically visible supratentorial extra-pial subarachnoidal cavernous angioma. This case provides confirmation of one of the supposed causes of subarachnoid hemorrahage "sine materia".

Original languageEnglish
Pages (from-to)163-166
Number of pages4
JournalJournal of Neurosurgical Sciences
Issue number4
Publication statusPublished - Dec 2005


  • Angioma
  • Extra-pial
  • Subarachnoid, cavernous angioma

ASJC Scopus subject areas

  • Clinical Neurology


Dive into the research topics of 'Sylvian subarachnoid and extra-pial cavernous angioma'. Together they form a unique fingerprint.

Cite this