Tetralogy of Fallot in a Japanese Macaque (Macaca fuscata)

Only a few case reports have described heart diseases in monkeys, and most cases have involved postmortem diagnosis. A newborn female Japanese macaque showed weakness immediately after birth and died 1 d thereafter. Necropsy revealed that the animal had tetralogy of Fallot and patent ductus arteriosus. This report is the first description of tetralogy of Fallot in a monkey.