Percutaneous Embolization of a Pulmonary Vein Pseudoaneurysm Secondary to Vascular Erosion of a Metastatic Mass.

Fifty-two-year-old female with high-grade undifferentiated pleomorphic left thigh sarcoma and bilateral metastatic soft tissue lesions to the lungs consistent with metastases, presented with recurrent, anemia, and worsening hemoptysis. Cross-sectional imaging demonstrated erosion of a right lower lobe metastatic mass into an adjacent right inferior lower lobe pulmonary vein with formation of a pseudoaneurysm. We report the successful treatment of this pseudoaneurysm via direct image-guided percutaneous access with subsequent coil embolization.