PMC9168292_01
Progression of the Chiari malformation type I and syringomyelia on sagittal T2-weighted MRI (a-e). Images taken at 4 months (a), 10 months (b), 9 years (c), 11 years (d), 16 years (e). Postoperative sagittal T2-weighted MRI (f).
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F1
At 9 years of age, although asymptomatic, the MRI demonstrated progressive tonsillar herniation and a syrinx [Figure 1].