Arnold-Chiari Malformation

Arnold-Chiari Malformation •This is the back of an infant with the spinal canal open to show the cerebellar tonsils herniating through the foramen magnum- a characteristic of Arnold-Chiari malformation. (blue arrows) •The yellow arrow points to the spinal cord. •This may be due to a small posterior fossa and is usually seen in infants with meningomyelocoele. (Description By:David Elwood ) (Image Contrib. by:David Elwood UCHC )