Muscle & nerve · 2016
Utility of whole exome sequencing in evaluation of juvenile motor neuron disease.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Agarwal Sonika, Potocki Lorraine, Collier Talia R, Woodbury Suzanne L, Adesina Adekunle M, Jones Jeremy, Lotze Timothy E
Аннотация
INTRODUCTION: This case report focuses on identifying novel mutations in juvenile motor neuron disease and emphasizes the significance of whole exome sequencing (WES).
METHODS: We report a 13-year-old Hispanic boy with rapidly progressive weakness, muscle atrophy, tremor, and tongue fasciculation, along with upper motor neuron findings of hyperactive gag reflex, hyperreflexia, and cog-wheel rigidity. Electromyography was suggestive of motor neuron disease. After an extensive evaluation, WES was performed.
RESULTS: WES identified a heterozygous de novo variant of unknown clinical significance (VUS) in the fused-in-sarcoma gene (FUS) [c.1554_1557del]. Although initially reported as a VUS, the clinical data from our patient and data from the medical literature support that the variant is indeed disease-causing.
CONCLUSIONS: The genetic etiology of amyotrophic lateral sclerosis (ALS) is heterogeneous and, as clinical sequencing for FUS was not available, WES was the only method by which a diagnosis of juvenile ALS could be made.
METHODS: We report a 13-year-old Hispanic boy with rapidly progressive weakness, muscle atrophy, tremor, and tongue fasciculation, along with upper motor neuron findings of hyperactive gag reflex, hyperreflexia, and cog-wheel rigidity. Electromyography was suggestive of motor neuron disease. After an extensive evaluation, WES was performed.
RESULTS: WES identified a heterozygous de novo variant of unknown clinical significance (VUS) in the fused-in-sarcoma gene (FUS) [c.1554_1557del]. Although initially reported as a VUS, the clinical data from our patient and data from the medical literature support that the variant is indeed disease-causing.
CONCLUSIONS: The genetic etiology of amyotrophic lateral sclerosis (ALS) is heterogeneous and, as clinical sequencing for FUS was not available, WES was the only method by which a diagnosis of juvenile ALS could be made.