Amnesia following infarction in the right retrosplenial region.

We present a case of retrosplenial amnesia following an infarction in the right retrosplenial region. A 62-year-old male showed mild weakness of the left hand, dizziness and gait disturbance. He also noticed that he could not perceive objects that he saw as real, but could perceive an object as real only by touching it. Magnetic resonance imaging (MRI) showed an infarction in the splenium of the corpus callosum and retrosplenial region on the right side. There was no aphasia or apraxia, but mild topographic disturbance was present. Intelligence was normal, but amnesia was noted. Both verbal and visual memory were disturbed equally. This case suggests that memory plays a role in the right retrosplenial region.