We present a 32-year-old female with aortopulmonary window and vegetat
ion of non-valvular main pulmonary artery. The aortopulmonary window i
s a rare congenital disease in which the aorta and pulmonary arteries
are communicated by a defect of variable diameter The pulmonic valve i
s the least commonly involved valve in bacterial endocarditis, but the
re is no vegetation of non-valvular main pulmonary artery in the liter
ature. Colour duplex sonography showed an aortopulmonary window with a
ortic regurgitation. Magnetic resonance (MR) imaging demonstrating the
vegetation on the wall of main pulmonary artery, is an useful and com
plementary method, and can be used for demonstration of congenital and
acquired cardiovascular pathologies including aortopulmonary window a
nd subpulmonic or suprapulmonic vegetations.