Xanthoma of the choroid plexus: a case report during gestation

Xanthomas of the choroid plexus are rare lesions of the central nervous system. The scarcity of reported cases probably accounts for the little information available about their origin, growth and spread. In the present article, we report the case of a 17 week old fetus with a xanthoma of the choroid plexus. The tumor extended from the trigone of the right lateral ventricle into the inter-hemispheric fissure, a defect at the junction of the splenium with the cerebral hemisphere. The size of the xanthoma suggested a time to double-size of a few days and an inception in the second month of gestation. The case illustrates the potential rapid growth of these tumors during gestation and a route for their spread outside of the ventricles.