Although intracranial meningiomas are usually solid and firm tumours, some are associated
with diagnostically confusing cysts. In this article, we present our experience from three of
our patients with cystic meningiomas and discuss the characteristics of these lesions. We
detected type two cysts in our first and third cases, and a type one cyst in the second case,
according to the Nauta classification. Contrast enhancement of the cyst wall was detected in
our third case and an atypical meningioma was diagnosed histopathologically. We conclude …