An Attypical Choroid Plexus Papilloma of IV Ventricle with Dissemination to a Sacral Tarlov Cyst: A Case Report

Abstract

Choroid Plexus Papillomas (CPP) is uncommon tumors of the CNS. Atypical CPPs represent an intermediate-grade subtype (Grade II) introduced in the update 2007 of the WHO classification. Distal spread of atypical CPPs through the subarachnoid space is very rare. We present a 53 yearold female with history of macroscopic surgical excision of an atypical CPP in the IV ventricle, with multiple local relapses and who ten years after diagnoses, presented tumor metastasis in a Tarlov cyst in the sacrum. Atypical CPPs are uncommon tumors, and to the best of our knowledge, no cases linking atypical CPP tumor dissemination to a Tarlov cyst have been reported in English or Spanish language medical literature