The term arnold-chiari deformity is identified in base64 scheme by the sequence YXJub2xkLWNoaWFyaSBkZWZvcm1pdHk=, while the MD5 signature is equal to ba108a6415692b59d5fc584c29b419ec. The ASCII encoding of arnold-chiari deformity in hexadecimal notation is 61726e6f6c642d636869617269206465666f726d697479.