case_images: PMC3063427_01
case_images: (Before the surgery) Midsagittal T2-weighted MRI shows tonsillar herniation of about one centimeter (the arrow) below the hard palateforamen magnum line (the line). Also, no Syrinx and no hydrocephaly or deformity of 4th ventricle is noticed.
case_images: JRMS-16-115-g001.jpg
case_images: PMC3063427_01_JRMS-16-115-g001.jpg
case_images: F1
case_images: According to MR imaging, Chiari I malformation was discovered in the patient (Figure 1).
case_images: (After the surgery) The occipital craniectomy scar (the arrow) and tonsillar upward migration above hard plate-foramen magnum line (the line), with dilation of foramen magnum and reduction of stenosis were seen. No syrinx, stenosis, and compression were found in the MRI study after the surgery.
case_images: JRMS-16-115-g002.jpg
case_images: PMC3063427_01_JRMS-16-115-g002.jpg
case_images: F2
case_images: Follow up MRI was presented in figure 2.