Ectopia cordis

Ectopia cordis is a birth defect in which the heart is abnormally located. In the most common form, the heart protrudes outside the chest through a split sternum. Less often the heart may be situated in the abdominal cavity or neck.Often other birth defects are also present. This condition is usually fatal in the first days of life. In some cases surgical treatment is possible. The ectopic heart is not protected by the skin or sternum. Other organs may also have formed outside the skin. Often the heart is not formed properly and many other heart defects are associated with this condition including: Tetralogy of Fallot, pulmonary atresia, atrial and ventricular septal defects, double outlet right ventricle. Other non cardiac malformations may be present such as cleft palates, spine malformations that can cause kyphosis.
See more at Wikipedia.org...

Ectopia cor·dis n. A congenital condition in which the heart is exposed on the chest wall because of maldevelopment of the sternum and pericardium. [more]Ectopia cordis - Community and Resources

A type of birth defect resulting in an abnormal location of the heart. (Most often, in individuals with ectopia cordis, the heart protrudes outside the chest.)