'Diverticulosis' of the fish duodenum infested with cestodes.
D000818:Animals; D002590:Cestode Infections / Q000662:veterinary*; D004240:Diverticulum / Q000473:pathology / Q000662:veterinary*; D004378:Duodenal Diseases / Q000473:pathology / Q000662:veterinary*; D004386:Duodenum / Q000473:pathology; D005393:Fish Diseases / Q000473:pathology*; D005399:Fishes