A rare case of bleeding into the Sylvian arachnoid cyst: A case report

Arachnoid cysts are primarily developmental in origin and constitute rare, benign lesions. Sylvian arachnoid may infrequently present with subdural and/or intracystic hemorrhage. Hemorrhage is typically of venous occurs due to stretching tearing bridging veins, depending on minor traumas. The annual risk bleeding associated cysts, no additional complaints other than headache an asymptomatic course, has been reported be 0.04%. Symptoms can range from coma, the mass effect after If there clinical evidence linking cyst, it sufficient perform surgery only for hematoma without resecting it. In this case report, we a rare instance hemorrhage cyst that developed trauma was observed patient who came our clinic headache. patient, cyst-dependent left parietal evacuated through burr-hole craniotomy, closed-system drainage Hemovac drain applied 48 hours. During post-operative follow-up, complete resorption hemorrhages observed. A case-based surgical approach necessary region.