[Differential diagnosis of the tetralogy of Fallot (author's transl)]

The differential diagnosis of the tetralogy of Fallot includes three main types of condition: 1) Malformations which differ from Fallot in their extent, such as interventricular communications of type IV and pulmonary atresia with an open septum. 2) Malposition of the large vessels with pulmonary stenosis (double opening in the right ventricle, complete or corrected transposition). 3) Malformations associating an intraventricular shunt and another type of pulmonary stenosis (double chambered ventricle, interventricular membranous and muscular communication, common atrioventricular canal, single ventricle). An analysis of the findings in angiographic images can provide precise differential diagnosis of these pseudo-Fallots.