Arteriovenous aneurysm of phrenic vessels simulating cardiac fistula.

W HEN a continuous murmur is heard in the chest of a child one usually thinks of a patent ductus arteriosus. This diagnosis is unlikely, however, if the murmur is not loudest in the left infraclavicular region, ancd some other explanation must then be sought. This commnunication is about a child with such a murmur and details the investigations that led to the diagnosis of phrenic arteriovenous aneurysm. This would appear to be the first reported example of such an aneurysm. Case Report