Congenital secondary hypothyroidism also has been reported in German Shepherds with pituitary dwarfism associated with a cystic Rathke's pouch. (merckvetmanual.com)
Dogs with pituitary dwarfism syndrome appear perfectly normal when they're born. (vetinfo.com)
Pituitary dwarfism occurs most frequently in German Shepherds but has been reported in other breeds such as the Spitz, Miniature Pinscher, and Karelian Bear Dog. (merckvetmanual.com)