Arachnoid cyst with spontaneous chronic subdural hematoma: Case report

Arachnoid cysts are developmental cerebral disorders that are mostly asymptomatic and diagnosed accidentally on routine brain imaging. Sometimes, these cysts can lead to serious complications such as intracystic and subdural hemorrhage. These hematomas often occur after minor head trauma but in some cases, hemorrhagic complication can occur without obvious predisposing insult. Our reported case is a 19 years old man admitted with acute neurological signs and diagnosed as subdural hematoma and treated without any history of recent head trauma. The only risk factor causing bleeding was arachnoid cyst.