Definition: Given an abstract of a paper, generate a title for this paper such that conveys the key focus of the paper.
Input: Abstract: Myxomas are predominantly located in the right on left atrium. We report an unusual case of a myxoma adherent to the aortic valve. The child presented with symptoms of subaortic stenosis. By invasive methods a tumor was diagnosed located at the aortic valve. After surgical removal the child recovered soon and is doing well. According to our knowledge this is the first report of a myxoma of the aortic valve.

Myxoma of the aortic valve in a child.