Multifocal Brain Lesions With Extensive Perilesional Edema in a Young Boy Returning From Kenya.

We report the case of an 8-year-old boy who presented with headaches, optic disc edema, and left eye esotropia. He had recently returned to the United States after living in Kenya for approximately 3 years. His brain magnetic resonance imaging showed multifocal lesions with significant perilesional edema seemingly out of proportion to his neurologic examination findings. With appropriate therapy there was remarkable improvement in his symptoms with reduction in size of the lesions and surrounding edema.