<I>Cerebral Sparganosis Mansoni</I>

Abstract

An 80-year-old male with paresis of the right upper extremity underwent surgery for a suspected metastatic brain tumor. A live Sparganum mansoni worm was removed from the parietal lobe through a left parietal craniotomy. Retrospective evaluation of magnetic resonance (MR) images revealed ipsilateral ventricular dilatation, despite the presence of a mass lesion resembling a metastatic brain tumor. This interesting MR imaging finding is an important point for differentiating between a brain tumor and cerebral sparganosis.