This Module is Module 10 in a 13 module eCourse series on Stats, Cardiac Cycle, Basic Echo Exam. For information on the full Pediatric Echocardiography, please click here. There are several important, but rare congenital problems that do not not easily fall into a larger subclass discussed in this module. . These congenital problems include Ebstein's anomaly of the tricuspid valve, coronary anomalies, and persistent left superior vena cava to the coronary sinus.