A pediatric patient with refractory seizures and a mesial temporal lobe lesion

Abstract

A 12 year old adolescent presented with refractory seizures and was found to have a mesial temporal lobe lesion. The patient underwent biopsy and was diagnosed with an arteriovenous malformation. Supratentorial lesions in the pediatric population can have a large variety of underlying etiologies which can be challenging to differentiate on neuroimaging. In this report we discuss the key features on MRI of several neoplastic, vascular, and infectious processes that can aide in the diagnosis.