Borno Medical Journal January - June 2020 Vol. 17 Issue 1 Page 1 This work is licensed under a Creative Commons Attribution 4.0 International License Lateral Ventricle Epidermoid Cyst Presenting with Right Hemiparesis and Blindness: A Case Report and Revi

Abstract

Epidermoid cyst of the CNS is rare, slow growing, benign neoplasm derived from the remnant of neural tube. It accounts for 0.2% of all  intracranial neoplasms. Intraparenchymal and lateral ventricles are the rarest sites within the CNS. The lesion is asymptomatic at the  early stage but later may present with mass effects and cranial neuropathies. We present our index case of a 23year old male who  presented late with a rare lateral ventricle epidermoid cyst associated with calcification resulting to left hemiparesis and blindness. The  excised tumour mass aggregate was 11cm and weighed 15g. This is an index case in our region. Lateral ventricle epidermoid cyst is a rare  neoplasm that may mimic neurocysticercosis, choroid plexus papilloma and dermoid cyst at both clinical and imaging levels. The  treatment of choice is surgical excision; however, there is recurrence rate of 33%with increased chances of chemical meningitis.  Nevertheless, the tumour rarely transforms to squamous cell carcinoma.