Breeds that are commonly affected include Boxer, Scottish Terrier, Basset Hound, Airedale Terrier, Chow Chow, German Shepherd, Poodle, St. Bernard, Bulldog, Beagle, Rottweiler[1] and Golden Retriever. The Golden Retriever is especially susceptible to developing lymphoma, with a lifetime risk of 1:8.[4]