A coronary-pulmonary artery fistula with giant aneurysmal dilatation is an extremely rare clinical constellation.The sippy cups natural course of this disease and the incidence of complications are unknown.Hence, optimal treatment, particularly in asymptomatic patients, is still a matter of debate.
Here we report a case of a 71-year-old asymptomatic woman Jars with a diastolic murmur.Comprehensive cardiovascular assessments including cardiac computed tomography and invasive coronary angiography revealed a coronary-pulmonary artery fistula with giant aneurysmal dilatation.The patient was managed conservatively and has now been followed up for 5 years without any events.