Giant Popliteal Venous Aneurysm—A Rare Cause of Recurrent Pulmonary Embolism

<b>Background:</b> A popliteal vein aneurysm (PVA) is a rare vascular abnormality that can lead to the formation of venous thrombi, resulting in potentially life-threatening pulmonary embolism (PE). <b>Methods:</b> We present the case of a 30-year-old female who presented with recurrent pulmonary embolism complicated by cardiorespiratory arrest. Emergency thrombolysis was initiated, which successfully stabilized the patient. Further diagnostic evaluation, including imaging studies, revealed the presence of a giant popliteal vein aneurysm (60/70 mm) as the underlying cause of recurrent embolism. <b>Results:</b> The patient underwent surgical repair of the popliteal vein aneurysm to prevent further thromboembolic events. The procedure was performed successfully, and the patient recovered favorably. <b>Conclusions:</b> This case underscores the importance of recognizing PVA as a potential cause of recurrent PE, particularly in young patients without typical risk factors.