A 39-year-old male presented with recurrent episodes of shortness of breath, desaturation, chest pain, and hemoptysis. He was initially treated for a recurrent chest infection. Investigations CT scan- A well circumscribed 4 cm mass within the left atrium with abnormal tissue within the left pulmonary vein. A multifocal ground glass opacity, nodularity, and consolidative changes within the left upper lobe representing a combination of infection, hemorrhage, and infarction.

2D ECHO- Echocardiogram confirmed a large left atrial mass measuring 3.6 × 4.5 cm causing mitral valve obstruction appearing to originate from the left superior pulmonary vein. Cardiac MRI- A large (41 mm × 44 mm HLA) mass in the left atrium arising from the left upper lobe in the pulmonary vein. Following contrast, there was heterogeneous opacification of the mass with absent filling of the left pulmonary veins.…