[Temporary Middle Lobe Congestion after Wedge Resection]

A 55-year-old woman, who had undergone laparoscopic resection for colorectal cancer, detected a solitary pulmonary nodule on her surveillance chest computed tomography. The lesion located in the right middle lobe, and she received thoracoscopic resection for metastasis from the colorectal cancer. The lesion was removed by wedge resection. During the operation we noticed the middle pulmonary vein was partially stapled because the nodule located close to the vein. There was no macroscopic and hemodynamic problem after the wedge resection, therefore, we decided to complete the operation without resection of the residual middle lobe. After the operation, pulmonary congestion localized to the residual middle lobe progressed within a few days. Because she had no severe symptom nor hemodynamic instability, we continued observation without additional intervention. The congestion gradually improved, and then she discharged from our hospital on 20 days after operation.