Clinical Reasoning: A 16-year-old boy with progressive cognitive decline and gait impairment

Abstract

A 16-year-old boy was admitted to our department primarily due to rapidly progressive cognitive decline and gait impairment for 1 month. Because of his vision loss, gait impairment, vague speech, choking, hearing loss, globally slowed response, and childish performance, which appeared successively and developed gradually, he became unable to continue daily activities over the prior 1 month.