Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is s / p left upper lobectomy . Cardiomegaly is mild . The ascending aorta is tortuous . The pulmonary vasculature is normal . No focal consolidation , pleural effusion , or pneumothorax . Pectus excavatum but no evidence of acute abnormality or intrathoracic malignancy .
    OUTPUT:
    
No evidence of acute abnormality or intrathoracic malignancy .