This lecture will cover: Clinical signs of chiari-like malformation associated pain and differential diagnosis; Clinical signs of syringomyelia and differential diagnosis; Diagnosis and MRI appearance of chiari-like malformation associated pain and syringomyelia; management options for Chiari-like malformation associated pain and syringomyelia (medical options will be covered in second lecture); Breeding recommendations for dog breeds and crosses predisposed to Chiari-like malformation associated pain and syringomyelia