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Transient mutism and pathologic laughter in the course of cerebellitis

Petia S Dimova1, Veneta S Bojinova, Ivan G Milanov

  • 1Clinic of Child Neurology, St. Naum University Hospital of Neurology and Psychiatry, Sofia, Bulgaria. pdimova@cablebg.net

Pediatric Neurology
|June 13, 2009
PubMed

Insights

This case study highlights transient mutism and pathologic laughter in a child with acute cerebellitis. These rare symptoms improved with steroid treatment, showing a novel presentation of cerebellitis in childhood.

Area of Science:

  • Neurology
  • Pediatrics
  • Neuroscience

Background:

  • Posterior fossa syndrome, characterized by cerebellar mutism and dysarthria, is typically associated with pediatric brain tumor surgery.
  • Pathologic laughter is predominantly observed in adult neurological conditions.

Observation:

  • A child presented with acute cerebellitis following a respiratory infection, exhibiting severe ataxia, mutism, vertigo, impaired consciousness, and involuntary pathologic laughter.
  • Clinical features included pyramidal signs, and MRI revealed cerebellar swelling with T2 hyperintensity.

Findings:

  • The child experienced transient mutism and pathologic laughter, rare manifestations of acute parainfectious cerebellitis in childhood.
  • Steroid treatment led to the resolution of pathologic laughter and improvement in motor and speech functions, though recovery was incomplete with subsequent cerebellar atrophy.

Implications:

  • This case expands the understanding of cerebellitis presentations, demonstrating that mutism can occur, albeit rarely.
  • It provides a unique example of pathologic laughter associated with cerebellitis in a pediatric patient, suggesting a broader spectrum of neurological manifestations.

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