Intracranial neurenteric cysts—Rare incidental findings with typical MR signal characteristics

Intracranial neurenteric cysts are extremely rare congenital space-occupying extra-axial lesions, usually located near the midline in the posterior fossa. They can cause a variety of neurological symptoms; however, they occasionally appear as incidental findings in MRI. They mostly display typical MR signal characteristics: hyperintense to cerebrospinal fluid (CSF) in T1-, T2-weighted imaging and in the Fluid Attenuated Inversion Recovery (FLAIR) sequence, while showing no significant restriction in diffusion weighted imaging and no enhancement. Herein, we present three cases from our clinic.