Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is right perihilar and right infrahilar / right basilar opacity which may be due to infection , pulmonary hemorrhage , underlying malignancy not excluded . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Right perihilar , infrahilar , right basilar opacity , increased from the prior study , could be due to infection , pulmonary hemorrhage , malignancy not excluded .