Right Pneumonectomy for Right Lower Lobe Lung Cancer with Partial Anomalous Pulmonary Venous Connection in Another Ipsilateral Lobe: A Case Report

In the present case, by assessing Qp/Qs using both echocardiography and right heart catheterization, we determined an appropriate surgical approach. However, right pneumonectomy is a risk factor for right-sided heart failure, and limited resection or nonsurgical treatment should be considered in certain cases. The presence of PAPVC in a non-resected lung requires caution when selecting the surgical approach. In cases of PAPVC, detailed preoperative CT evaluation is essential.