Abstract
INTRODUCTION: Morgagni's congenital diaphragmatic defect is a rare malformation, the diagnosis of which, as in our case report, may be problematic. To the best of our knowledge, this is the first report of this kind of hernia presenting with signs and symptoms of severe cardiac malformation. CASE PRESENTATION: We report the case of a three-month-old Caucasian baby boy, who presented with heart failure and severe pulmonary hypertension. Compression of the heart by a bowel loop in the chest led to an incorrect diagnosis of congenital heart disease. CONCLUSIONS: Even in this era of highly sophisticated diagnostic tools, a simple radiograph can provide sufficient information for a precise, rapid diagnosis.