"cardiac tumours (generally not considered 'true' pulmonary stenosis)"
Expected headings
"Echocardiography"
"Complications"
"Isolated pulmonary stenosis is almost always congenital. Causes of congenital pulmonary stenosis are protean (e.g. Noonan syndrome, Williams syndrome, tetralogy of Fallot, etc.), and can be classified as being either supravalvular (most common), valvular, or subvalvular 1,2. These congenital aetiologies and associations are discussed in more depth in the article on congenital pulmonary stenosis."