Abnormal return of the pulmonary vein completely is considered as one of the congenital anomalies, accounting for the current average rate, about 1-2%. This type of abnormal pulmonary vein malformation needs to be detected early to have the most effective treatment for the patient.

There are many reasons for your back pain right behind your lung, this can related to bone, joint or malignant disease (cancer). According to actual records, many individuals need to have a physical examination owing to the pain in the back and shortness of breath, the result is a diagnosis of lung cancer in surprise and confusion.