Pulmonary segregation is a benign lesion of abnormal developing lung tissue that occurs within the lung. It is clinically classified as intralobar pulmonary segregation and extralobar pulmonary segregation. The blood supply artery in pulmonary isolation usually originates from the aorta and involves one or more blood supply arteries. Due to this unique anatomical relationship, interventional embolization is possible. Interventional embolization is performed by catheter insertion into the blood supply artery under the supervision of DSA angiography machine and embolization is performed. The embolized abnormal lung tissue gradually degenerates and atrophies due to ischemia and hypoxia. The procedure differs from previous surgical procedures in that it does not require opening the patient’s chest cavity, but only a small 2-mm incision in the groin area under local anesthesia.