An unusual co-occurrence of lown-ganong-levine syndrome with neonatal focal lipomatous hypertrophy of interatrial septum with patent foramen ovale

We report an extremely rare co-occurrence of focal lipomatous hypertrophy of the interatrial septum (LHIS) with patent foramen ovale (PFO) in a neonate and electrocardiogram evidence of Lown-Ganong-Levine syndrome (LGL). Although atrial arrythmias in the form of supraventricular tachycardia like atrial premature contractions, atrial fibrillation, and atrioventricular block have been described in lipomatous hypertrophy interatrial septum, co-occurrence of LGL syndrome with LHIS has not been described in literature so far. Baby presented in the cardiology outpatient department for presurgical cardiological evaluation of congenital hydrocephalus. Typically, LHIS spares fossa ovalis and affects both side of the interatrial septum making interatrial septum dumbbell shaped. There is even no literature description of focal hypertrophy of interatrial septum in early infancy and child hood including neonatal period. Our case is a unique illustration of a rare co-occurrence of LGL syndrome in focal lipomatous hypertrophy of interatrial septum in a neonate with PFO.