Isolated Infundibular Pulmonary Stenosis with Infectious Endocarditis: a Rare Ecocardiographic Finding

DOI: 10.5935/2318-8219.20190040 Introduction The right ventricle (RV) consists of three portions: the inflow tract, trabecular region, and outflow tract, also called infundibulum, which separates the tricuspid and pulmonary valves. Some congenital heart diseases include abnormalities in this area and can cause obstruction of the right ventricular outflow tract (RVOT). Infundibular pulmonary stenosis (IPS) is one of these cardiopathies and is often associated with other abnormalities, especially interventricular septal defect but, as an isolated presentation, it is considered a rare finding. Heart diseases may result in serious complications such as heart failure and infective endocarditis (IE). The latter has vegetation as a typical lesion. Vegetation is a mass of platelets and fibrin, in which microorganisms and inflammatory cells are captured. It can be precipitated by a valvulopathy or endocardial lesion. This report describes the case of a young patient admitted to a tertiary hospital with rare congenital pathology, whose diagnosis was made as a result of infective endocarditis.