title: Polycystic immature teratoma observed at the head of Meckel's diverticulum of a chick.
mesh_terms: D000818:Animals; D002645:Chickens; D003560:Cysts / Q000473:pathology / Q000662:veterinary; D007078:Ileal Neoplasms / Q000473:pathology / Q000662:veterinary*; D008297:Male; D008467:Meckel Diverticulum; D011201:Poultry Diseases / Q000473:pathology*; D013724:Teratoma / Q000473:pathology / Q000662:veterinary*