Papillary Ependymoma of the Spinal Cord: A Case Report with Summary of Prior Published Cases

Papillary ependymoma is a rare variant of ependymoma. It has been included in Grade II tumors of updated 2016 WHO classification of central nervous system tumors. Only a handful of cases of spinal papillary ependymomas have been reported so far. The differential diagnoses include choroid plexus papilloma, papillary meningioma, metastatic carcinoma, and papillary tumor of the pineal region. Here, we take the opportunity of reporting a rare case of spinal papillary ependymoma along with its squash cytological features and a summary of prior published cases.