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Peduncular hallucinosis : an unusual sequelae of medulloblastoma surgery
1Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, India.
Insights
Peduncular hallucinations, visual disturbances linked to brain lesions, can occur after posterior fossa surgery. This case highlights potential midbrain compression as a cause in a pediatric patient.
Area of Science:
- Neuroscience
- Pediatric Neurology
- Ophthalmology
Background:
- Peduncular hallucinations are complex visual disturbances.
- They are typically associated with lesions affecting the midbrain, pons, and diencephalon.
- These hallucinations are often linked to sleep disturbances.
Observation:
- A four-year-old child underwent surgery for a midline posterior fossa medulloblastoma.
- Postoperatively, the child developed peduncular hallucinations on the third day.
- This occurred despite no prior history of such visual disturbances.
Findings:
- The development of peduncular hallucinations was noted shortly after the surgical intervention.
- The timing suggests a potential link between the surgery and the onset of symptoms.
- Traction trauma or compression of the midbrain is hypothesized as the cause.
Implications:
- This case underscores the importance of monitoring for neurological complications after posterior fossa surgery.
- It highlights peduncular hallucinations as a potential, albeit rare, postoperative symptom in pediatric neurosurgery.
- Further investigation into the mechanisms of surgical-induced peduncular hallucinations is warranted.
Abstract:
Peduncular hallucinations are formed visual images often associated with sleep disturbance and are caused by lesions in the midbrain, pons and diencephalon. In present case report, a four year child, who was operated for midline posterior fossa medulloblastoma developed peduncular hallucinations on 3rd post operative day. Traction trauma or the compression of mid brain was thought to be the most possible cause of hallucinations.