The Role of Arachnoid Veils in Chiari Malformation Associated with Syringomyelia

  • Pasquale Ciappetta
  • Francesco Signorelli
  • Massimiliano Visocchi
Part of the Acta Neurochirurgica Supplement book series (NEUROCHIRURGICA, volume 125)


Chiari malformation type I (CM-I), or hindbrain herniation syndrome, has traditionally been defined as a dislocation of the cerebellar tonsils 5 mm or more below the foramen magnum on sagittal magnetic resonance imaging (MRI) [1, 2]. An association of this anomaly with syringomyelia is observed in 45–68% of patients [3, 4].


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • Pasquale Ciappetta
    • 1
  • Francesco Signorelli
    • 2
  • Massimiliano Visocchi
    • 2
  1. 1.University of Bari, Medical School, Section of Neurological SurgeryBariItaly
  2. 2.Institute of Neurosurgery, Catholic University School of MedicineRomeItaly

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