Pulmonary Embolism (PE) is predominantly a disease in older individuals. The incidence of venous thromboembolic events in the elderly is more common among men than women. In patients younger than 55 years, the incidence of PE is higher in females. Relatively uncommon, Partial Anomalous Pulmonary Venous Return (PAPVR) is most frequently congenital and associated with hereditary diseases. Patients may remain asymptomatic until their third decade of life. This is a case of a 19 year old female who presented with difficulty of breathing and generalized body weakness. Initial impression was Congenital Heart Disease with Pulmonary Hypertension tic Pulmonary Embolism. 2D-echocardiography, chest radiograph and Lung perfusion scintigraphy were requested. 2D echo report showed: congenital heart disease: partial anomalous pulmonary venous return. Chest radiograph was read as normal and Lung Perfusion imaging revealed: multiple segmental perfusion defects in both lungs without radiographic abnormalities; consider high probability for pulmonary embolism. Progression of symptoms lead to cardiorespiratory arrest hence, patient expired on second hospital day.