Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Coarsened interstitial markings within the right upper lung and left mid to lower lung concerning for carcinomatosis . Increasing opacity at the right lung base likely reflects known malignancy . A component of postobstructive collapse is difficult to exclude . Heart size difficult to assess . Hilar prominence reflects lymphadenopathy . No pneumothorax .
    OUTPUT:
    
Coarsened interstitial markings concerning for lymphangitic carcinomatosis with increasing right basal opacity likely progression of malignancy possibly with postobstructive collapse .