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Related Experiment Videos

Trochlear nerve neurinoma presenting as pathological laughter.

T D Nadkarni1, A Goel

  • 1Department of Neurosurgery, King Edward Memorial Hospital, Parel, Mumbai, India.

British Journal of Neurosurgery
|January 5, 2000
PubMed
Summary

A rare trochlear nerve neurinoma caused pathological laughter in a 48-year-old woman. Surgical removal of the tumor successfully resolved the symptom, highlighting a unique clinical presentation and treatment outcome.

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Area of Science:

  • Neuro-oncology
  • Neurology
  • Ophthalmology

Background:

  • Neurinomas are benign tumors arising from nerve sheaths.
  • Trochlear nerve neurinomas are exceptionally rare, with limited documented cases.
  • Pathological laughter can be a symptom of various neurological conditions.

Observation:

  • A 48-year-old female presented with pathological laughter as her primary neurological symptom.
  • Neuroimaging revealed a neurinoma affecting the trochlear nerve.
  • The patient's symptom of pathological laughter was directly linked to the presence of the tumor.

Findings:

  • Successful resection of the trochlear nerve neurinoma led to complete resolution of pathological laughter.
  • This case underscores the potential for trochlear nerve tumors to manifest with unusual symptoms.

Related Experiment Videos

  • Histopathological examination confirmed the diagnosis of neurinoma.

    • Implications:

    • Highlights the importance of considering rare neurological causes for symptoms like pathological laughter.
    • Demonstrates the efficacy of surgical intervention for trochlear nerve neurinomas.
    • Contributes to the limited literature on trochlear nerve neurinomas and their varied clinical presentations.