Arrhythmia as a Presenting Feature of Atypical Cardiac Rhabdomyoma in Children

The most common type of cardiac tumour found in children is a rhabdomyoma. These benign masses are commonly associated with the tuberous sclerosis complex (TSC), an autosomal dominant neurocutaneous disorder that affects multiple organs. We present two pediatric cases with an atypical location of cardiac rhabdomyoma associated with the unusual presenting feature of arrhythmia.