[Muscle-eye-brain disease. Presentation of one case with genetic study].

INTRODUCTION

The objective [corrected] is to present a case of muscle-eye-brain (MEB) disease with genetic study.

MATERIAL AND

METHODS

We studied an affected male from the age of 7 months to 21 years. During this time, clinical, analytical, neurophysiological (EEG, EMG, visual evoked potential [VEP], electroretinogram [ERG]), image (CT, MR), cerebral biopsy and genetic studies were performed.

RESULTS

Severe visual acuity impairment with optic atrophy from the first months of life, abnormal VEP and ERG, CT and MR showing <<cobblestone complex>> image of the cerebral cortex and subcortical white matter with myelinating changes; the histologic study of the cerebral biopsy sample showed hypomyelinating lesions and migration changes. The patient is alive at 21 years of age. The genetic study confirmed the presence of two recessive mutations, c.1274G>C and c.1895+1_4delGTGA, within the POMGnT1 gene.

CONCLUSIONS

The patient shows typical clinical, neurophysiological, histological and genetic MEB features.