Cardiac rhabdomyoma can be subclinical or have a fatal presentation according to the onset age and involved site, size, and degree\nof invasion. Although most cardiac rhabdomyomas become smaller with time, emergency intervention is indicated when severe\nobstruction has occurred. In this report, we describe the spontaneous regression of a large cardiac rhabdomyoma (20.5 Ã?â??15.6 mm)\npresenting as severe left ventricular inlet obstruction in a neonate with tuberous sclerosis. Although a cardiac rhabdomyoma can\nbe large enough to induce left ventricular inlet obstruction, conservative treatment without aggressive surgical intervention can be\nconsidered if the hemodynamic condition does not deteriorate.
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