Megaloblastic anaemia caused by a posterior duodenal pouch.
D000740:Anemia / Q000209:etiology*; D000749:Anemia, Megaloblastic; D004240:Diverticulum; D004386:Duodenum; D005750:Gastric Juice; D006801:Humans
ANEMIA, HYPERCHROMIC/etiology and pathogenesis; DUODENUM/diverticula; GASTRIC JUICE