“…As equine veterinarians, we are actually very fortunate because the guttural pouch (GP) provides us with a unique window into numerous important and complex anatomic structures [ 2 ] that are impossible to visualize in other species. GP endoscopy allows for the visualization, diagnosis [ 3 , 4 , 5 ], and treatment [ 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ] of many clinical problems in the equine retropharyngeal region.…”