Case report: Subdural hygroma in an adolescent caused by a soccer ball strike to head

Abstract

Arachnoid cysts are benign, congenital, non-neoplastic, extra-axial-intra cerebrospinal fluid (CF) collection lesions. They are often diagnosed incidentally during imaging examinations and are usually asymptomatic. We present a case of a subdural hygroma, secondary to an arachnoid cyst which had ruptured following minor head injury. This is a rarely seen complication although it has previously been described in the literature. • Arachnoid cysts are benign congenital, non-neoplastic, extra-axial-intra cerebrospinal fluid (CF) collection lesion. (Established facts). • The majority of AC cases are usually asymptomatic. (Established facts). • Arachnoidcyst are often diagnosed incidentally during imaging examination. (Established facts). • Hygroma secondary to arachnoid cyst is a rarely seen complication, which is often required surgery (Novel insight). • In this case subdural hygroma evacuation and microsurgical fenestration was performed with a left lateral supraorbital approach depend on patient condition and symptoms. (Novel insight).