Cœur en sabot

Cœur en sabot (French for "clog-shaped heart" or "boot-shaped heart" ) is a radiological sign seen most commonly in patients with tetralogy of Fallot, a cyanotic congenital heart disease. It is a radiological term to describe the following findings in the x-ray:
 * The cardiac size is normal or mildly enlarged.
 * The left cardiac border shows uplifted apex "outermost lower most point of the heart at the left side" denoting right ventricular enlargement.
 * exaggerated cardiac waist, which means that the pulmonary segment is small and concave suggesting infundibular pulmonary stenosis.

Echocardiography has been used for confirmation and differentiation of congenital heart diseases.