Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An abnormal right hilar contour associated with known malignancy appears not definitely changed , allowing for differences in technique . The heart is normal in size . The mediastinal and left hilar contours appear unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Findings consistent with known malignancy , although without definite superimposed process .