Left main coronary artery compression by a large pulmonary artery aneurysm in the absence of pulmonary hypertension: a case report

Background Pulmonary artery aneurysms (PAAs) are rare and they are infrequently diagnosed due to the non-specificity of their symptoms. However, their related complications, mainly described in patients with pulmonary hypertension (PH), are associated with significant morbidity and mortality.