Neuroenteric cysts of the brain-comprehensive magnetic resonance imaging
A 7 month old girl presented with complaints of poor feeding, excessive crying and downgaze preference since 1 month. MRI [] showed a CSF-intensity cystic lesion of 7 × 5.7 × 5.8 cm size in left side of posterior fossa compressing the brainstem and cerebellar hemisphere to right with obstructive hydrocephalus and periventricular hyperintensities. The child underwent midline suboccipital craniotomy and decompression of cyst. On histopathology, the cyst wall was lined by pseudostratified ciliated cuboidal to flattened epithelium (black arrow) with a subepithelium composed of fibrocollagenous tissue with dilated vascular channels. On microscopic examination, the findings were suggestive of a neuroepithelial cyst, but based on the immunohistochemical properties, a final diagnosis of neuroenteric cyst was made.