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Chiari I Malformation – Surgical Treatment — SCE Neurology MCQ

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HardNeuro-oncologyChiari I Malformation – Surgical TreatmentSCE Neurology

A patient with Chiari I malformation has progressive cough headache, hand numbness and a cervical syrinx. Which management is most appropriate?

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Correct answer: A — Refer for posterior-fossa or foramen-magnum decompression by an experienced neurosurgical team

The best answer is “Refer for posterior-fossa or foramen-magnum decompression by an experienced neurosurgical team”. Progressive symptoms plus syringomyelia indicate clinically significant crowding and support decompression after specialist assessment. “Perform lumbar puncture to drain CSF” is a credible alternative elsewhere, but it fails the decisive discriminator in this case. “Use a cervical laminectomy without addressing craniovertebral obstruction” is a credible alternative elsewhere, but it fails the decisive discriminator in this case. “Observe indefinitely despite progressive myelopathy and syrinx” is a credible alternative elsewhere, but it fails the decisive discriminator in this case. “Insert a ventriculoperitoneal shunt in every case” is a credible alternative elsewhere, but it fails the decisive discriminator in this case.

Reference: Congress of Neurological Surgeons Chiari malformation guideline: https://pubmed.ncbi.nlm.nih.gov/37646504/