[Tuberous sclerosis: first manifestation as cardiac arrhythmia in a newborn]

A newborn baby is found to have multifocal atrial tachycardia. Myoclonic seizures and depigmented nevi appear at the age of five months. The clinical diagnosis of tuberous sclerosis is confirmed by the result of cranial computerized tomography, which shows typical lesions. Though cardiac angiography fails to show an intracavitary tumor, multiple intramural rhabdomyomas of the myocardium are probably the cause of the persistent arrhythmia.