Keimyung Medical Journal  2015;34(1):74-79

Hypoglycemic Encephalopathy with Reversible Unilateral Hippocampal Lesion on Brain MRI.

Hyon Ah YI 1 ; Hyung LEE

Affiliations

+expand

Keywords

Amnesia; Hypoglycemic encephalopathy; Unilateral hippocampal lesion

Country

Republic of Korea

Language

Korean

Abstract

There have been few reports of hypoglycemic encephalopathy (HE) with unilateral brain lesion. A 66-year-old male with hypoglycemia, who had history of diabetes and recent poor oral intake, presented with amnesia and confusion. Diffusionweighted imaging (DWI) showed high signal intensity in left hippocampus, which was low on apparent diffusion coefficient (ADC) map. By intravenous glucose, the symptoms improved besides amnesia for hypoglycemic period. Follow-up DWI revealed no lesion and single photon emission computed tomography (SPECT) showed decreased perfusion in left temporo-parieto-frontal area. We experienced a case of HE with a reversible unilateral hippocampal lesion.