A Pediatric Radiology Textbook and Pediatric Radiology Digital Library
Chiari I Malformation
Etiology: abnormality of dorsal induction
Imaging: peg shaped cerebellar tonsil > 5 mm below foramen magnum, syrinx in 25%
Radiology Cases of Chiari I Malformation
Sagittal midline 2D reconstruction of CT without contrast of the brain shows the cerebellar tonsils to be herniating > 5 mm beneath the foramen magnum.
Pediatric Imaging 