Next generation sequencing for rapid diagnosis of a rare early onset spastic paraplegia: A novel pathological variant in FA2H gene

Abstract

Introduction

Hereditary spastic paraplegia is a group of inherited neurological disorders with predominant manifestations of lower extremity weakness and severe spasticity. This is a genetically heterogeneous disorder very difficult to distinguish clinically with many genes described. Few patients with this condition have been previously reported.

Patient and methods

We present a case of a 5 years old girl, born from consanguineous parents, with severe ataxia and progressive spasticity of low limbs. Due to the severity of the symptoms and the need for early diagnosis, next generation sequencing study of 37 genes implicated in spastic paraplegia was performed.

Results

A novel pathological variant in FA2H gene was discovered. Father, mother and brother were heterozygous carriers.

Conclusions

Spastic paraplegia due to mutations in FA2H is an under diagnosed condition, and it should always be considered in childhood onset of progressive pyramidal dysfunction. Next Generation Sequencing allows a simultaneous analysis of many genes, enables a fast diagnosis in complex disorders.