case_images: PMC3964166_01
case_images: (A and B) Classification of spinal arachnoid cysts. (A) Two anatomical types of spinal arachnoid cysts; (B) novel five-type classification system determined by magnetic resonance imaging (MRI).
case_images: ndt-10-499Fig1.jpg
case_images: PMC3964166_01_ndt-10-499Fig1.jpg
case_images: f1-ndt-10-499
case_images: Spinal arachnoid cysts were subdivided into five types: 1) intramedullary cysts/syrinxes, 2) subdural extramedullary, 3) subdural/epidural, 4) intraspinal epidural, or 5) intraspinal/extraspinal (Figure 1).