A unique case of agenesis of corpus callosum with concomitant midline teratoma and dorsal interhemispheric cyst

Abstract

Midline interhemispheric cyst with corpus callosal agenesis is a well recognized condition and has been associated with various genetic conditions. Associated extraaxial tumors are uncommon with no proven genetic association. We describe a rare case of corpus callosal agenesis with a dorsal interhemispheric cyst and an extraaxial teratoma in the basifrontal region and review its imaging features along with the etiopathogenesis of concurrence of such condition.