Choroid plexus papilloma

Abstract

Choiroid plexus tumor is rare, accounting for less than one percent of all primary intracranial tumors. The majority are found in the first decade of life. Infantile cases as the one we describe, although rare, have been reported. The most common locations are the lateral ventricles and lateral recesses of the 4th ventricle. The gross pathologic appearance is of globular red mass with a cauliflower-like configuration. The histology closely resembles that of the choroid plexus with delicate papillary projections composed of a fibrovascular stroma lined by a layer of columnar cells. Mitotic findings are rare and necrosis is not present. These tumors are rarely malignant.