Intracranial aneurysm and arachnoid cyst: just a coincidence? A case report

• Main Authors: Guilherme Brasileiro de Aguiar, Rafael Gomes dos Santos, Aline Lariessy Campos Paiva, João Miguel de Almeida Silva, Rafael Carlos da Silva, José Carlos Esteves Veiga
• Format: Article
• Language: English
• Published: Associação Paulista de Medicina 2017-12-01
• Series: São Paulo Medical Journal
• Subjects: Arachnoid cysts; Intracranial aneurysm; Collagen diseases; Intracranial hemorrhages
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802017005019101&lng=en&tlng=en

ABSTRACT CONTEXT: Presence of an arachnoid cyst and a non-ruptured intracystic brain aneurysm is extremely rare. The aim of this paper was to describe a case of a patient with an arachnoid cyst and a non-ruptured aneurysm inside it. Clinical, surgical and radiological data were analyzed and the literature was reviewed. CASE REPORT: A patient complained of chronic headache. She was diagnosed as having a temporal arachnoid cyst and a non-ruptured middle cerebral artery aneurysm inside it. Surgery was performed to clip the aneurysm and fenestrate the cyst. CONCLUSIONS: This report raises awareness about the importance of intracranial vascular investigation in patients with arachnoid cysts and brain hemorrhage.