IMAGING IN NEURENTERIC CYSTS OF THE POSTERIOR CRANIAL FOSSA

Neurenteric cysts are cystic masses lined by a columnar epithelium of endodermal origin. They are rare in the central nervous system. We rep ort two neurenteric cysts in the posterior cranial fossa and describe their neuroradiological features. The lesions were of low density on C T and more accurately delineated on MRI. They gave the same signal as cerebrospinal fluid on all sequences. There was no contrast enhancemen t.