Presentation
Chronic headaches.
Patient Data
Age: 7 years
Gender: Male
From the case:
Chiari 1 malformation
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Caudal descent of the cerebellar tonsils through the foramen magnum,11 mm below the McRae line on sagittal T1 sequence with crowding of the medulla by the tonsils on axial sequences.
Normal appearance of the posterior cranial fossa, cerebral hemispheres and ventricular system.
Case Discussion
MRI features of Chiari 1 malformation. No associated syrinx of the cervical spinal cord (MRI not shown).
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