Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mediastinal shift to the left consistent with volume loss from the patient 's prior left lower lobectomy . Blunting of the left costophrenic angle is chronic and likely due to thickening or scarring of the pleura . On the right , there is no pleural effusion or pneumothorax . Known pulmonary nodular opacities at the right lower lobe are better appreciated on the CT from two days ago . Bones are intact . Vascular clips are seen within the left hemithorax . Aortic valve is calcified .
    OUTPUT:
    
1 . Right lower lobe pulmonary nodular opacities , better appreciated on the CT from two days ago , suggestive of an infectious process . No new pulmonary opacities identified . 2 . Status post left lower lobectomy with expected left lung volume loss .