Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post right upper lobectomy with right - sided volume loss similar to prior . There are opacities at the right lung base laterally and blunting of the lateral costophrenic angle is likely due to scarring and is unchanged . The left lung is clear and there is no effusion . Cardiomediastinal silhouette is stable . Surgical clips project in the left upper quadrant and left mid abdomen .
    OUTPUT:
    
Post - treatment changes without definite superimposed acute cardiopulmonary process .