Chronic subdural hematoma associated with arachnoid cyst： report of two cases.pdfVIP

Chinese Medical Journal 2007；120(24)．2339—2340 2339 Case report Chronic subdural hematoma associated with arachnoid cyst： report of two cases ZHANG Hong，ZHANG Jian-ruing and CHEN Gao Keywords：arachnoid cysts；hematoma,subdural Tntracranial arachnoid cysts，which often occur in 上children(75％)，account for 1％of intracranial masses． The cyst is most commonly located at the middle cranial fossa and more frequently on the left side．Th e disease is usually asymptomatic，but can become acutely symptomatic because of hemorrhage and cyst enlargement，which may result from minor head trauma and are often complicated with a subdural hematoma．Here we report two cases of intracranial arachnoid cyst associated with ipsilateral chronic subdura】hematoma． Fig．1．MRI showing chronic subdural hematoma and middle CASE REPoRT arachnoid cyst atthe cranialfossa ontheleft side． Fig．2．MRI scan demonstrating an~achnoid cyst on the left Case 1 side with bleeding into the cyst cavity． A 2 1一year-old men complaining of slight headache for one month and a sudden flare．up after swimming for two DISCUSSION days accompanied by vomiting once，was admi ~ed to our department on August 3 1．2005．On admission．the Arachnoid cysts are benign，congenital，space—occupying patient was alert and oriented；physical exami nation intra—arachnoid lesions． comprising 1％ of all the showed that his pupil reaction was normal and no positive intracranial mass． They may occur at any age but most neurological signs．CT and MRI scan found a left