PMC3623113_01
Sagittal magnetic resonance image of Arnold-Chiari type I malformation. White arrow denotes the 7 mm tonsillar herniation from the cerebellum. No syringomyelia is seen.
CRIM.ANESTHESIOLOGY2013-512915.001.jpg
PMC3623113_01_CRIM.ANESTHESIOLOGY2013-512915.001.jpg
fig1
MRI of the brain showed a 7 mm cerebellar tonsil herniation into the foramen magnum without syringomyelia (Figure 1).