Background: Current studies contain controversies regarding indications and preferable surgical techniques for arachnoid cysts.
Case description: In this paper we present case report of giant arachnoid cyst of right frontal lobe in young left-handed adult with headache, MRI sings of brain compression and epileptiform activity on EEG, treated by microsurgical cystostomy.
Conclusion: We add a case of young adult with tension headaches and possible sub-clinical seizures due to arachnoid cyst, whose symptoms disappeared after surgical management of the cyst, including normalization of EEG.
Keywords: Adult; Arachnoid cyst; Cystostomy; Epilepsy; frontal lobe.
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