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Hemifacial spasm or subcortical epilepsy?
A A Arzimanoglou1, F Salefranque, F Goutières
1Child Neurology and Metabolic Diseases Dpt., Hôpital Robert-Debré, Paris, France. alexis.arzimanoglou@rdb.ap-hop-paris.fr
Summary
Goldenhar syndrome in a child caused hemifacial contractions resembling seizures and later, eye and chin movements indicative of myorhythmias. An MRI revealed a pontomedullary junction lesion, potentially explaining both conditions.
Area of Science:
- Neurology
- Developmental Biology
- Genetics
Background:
- Goldenhar syndrome, a rare congenital disorder, involves abnormal development of the first and second branchial arches.
- Early-onset neurological manifestations in Goldenhar syndrome are not well-characterized.
Observation:
- A neonate with Goldenhar syndrome presented with paroxysmal hemifacial contractions, mimicking partial seizures or hemifacial spasm.
- Later, the patient developed permanent, rhythmic eye and chin movements consistent with myorhythmias, suggesting dentato-olivary pathway involvement.
Findings:
- Magnetic Resonance Imaging (MRI) revealed a hamartomatous lesion at the pontomedullary junction.
- The lesion's location and nature are hypothesized to be the cause of both the initial hemifacial contractions and the subsequent myorhythmias.
Implications:
- This case suggests a potential link between pontomedullary hamartomas and specific movement disorders in Goldenhar syndrome.
- Understanding this association may improve diagnostic approaches and therapeutic strategies for neurological complications in this syndrome.
- The findings highlight the intricate relationship between developmental abnormalities and neurological sequelae.