Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: It is difficult to compare this exam with the previous one on ___ because of the rotation of the patient in the last exam . In comparison to the one on ___ , the right hilar region is more dense and more convex mostly in its lower region . There is also underlying post-radiation changes with volume loss . Small right pleural effusion . There is no evidence of pneumonia . There is no pneumothorax . The left lung is unremarkable . The mediastinal and cardiac contour is unchanged .
    OUTPUT:
    
1 . There is no evidence of pneumonia . 2 . The right hilar region appears more dense and more convex which is worrisome for progression of the malignancy . A CT scan is suggested .