Direct left atrial invasion by lung cancer through the pulmonary vein: a case report of a rare cause of sylent systemic embolization

This case highlights a rare yet critical route of cardiac invasion in lung cancer. The combination of direct left atrial involvement and silent systemic embolization underscores the importance of multimodal imaging in diagnosis and risk assessment. Despite the absence of mitral obstruction, the presence of a hypermobile intracardiac mass should prompt consideration of embolic complications.