A severe case of Moebius syndrome with calcification on the fourth ventricular floor

Y Matsunaga1, N Amamoto, T Kondoh

  • 1Department of Pediatrics, Nagasaki University School of Medicine, Japan.

Insights

This case study details a severe Moebius syndrome presentation in a Japanese girl, highlighting neurological and musculoskeletal issues. The findings suggest fetal blood supply disruption to the brain stem as a likely cause.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Moebius syndrome is a rare congenital disorder characterized by facial nerve and abducens nerve palsies.
  • Severe presentations can involve multiple cranial nerves and limb malformations, significantly impacting patient health.

Observation:

  • A Japanese infant presented with a severe Moebius syndrome phenotype.
  • Key features included a mask-like face, limited horizontal eye movements, bulbar palsy, bilateral arthrogryposis, and clubfeet.
  • Postnatal complications included apneic spells, aspiration pneumonia due to dysphagia, and the need for tracheotomy.

Findings:

  • Cranial computed tomography (CT) revealed calcifications on the fourth ventricle floor, indicative of severe brain stem damage.
  • The diverse clinical manifestations are hypothesized to stem from disrupted blood supply to fetal brain stem arteries during development.

Implications:

  • This case underscores the potential for severe neurological and physical deficits in Moebius syndrome.
  • Understanding the vascular etiology may inform future research into prevention and management strategies.
  • Highlights the importance of early diagnosis and supportive care for severe congenital conditions.

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