Author: Sana Ullah, MB ChB, FRCA – Children’s Medical Center, Dallas TX


A 12-year-old previously healthy male child from Tibet complains of feeling unwell while visiting relatives in the US. A moderately loud murmur is auscultated on physical exam. Vital signs are unremarkable. Which of the following lesions is MOST LIKELY to be present on a transthoracic echocardiogram?