Main Article Content



Patients with Type 1 Chiari malformation may not have any abnormality at birth. This is because Chiari 1 malformation is the mildest form of the Chiari spectrum of abnormalities. It is characterized by the displacement of deformed cerebellar tonsils more than 5 mm caudally through the McRae’s line. As a result, the IVth ventricle may be small and distorted.[1,2]

Article Details

How to Cite
Amit Shrivastava, Gunjan Jindal, & Smriti Deswal. (2024). Basilar Invagination and Platybasia in Chiari I Malformation Diagnosed in an Elderly Patient. Journal of Evolution of Medical and Dental Sciences, 13(4), 102–103.


  1. Tam SK, Chia J, Brodbelt A, et al. Assessment of patients with a Chiari malformation type I. Brain and Spine 2022;2:100850.
  2. Liao C, Visocchi M, Zhang W, et al. The relationship between basilar invagination and Chiari malformation type I: a narrative review. New Trends in Craniovertebral Junction Surgery: Experimental and Clinical Updates for a New State of Art 2019:111-8.