Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . Abnormal mediastinal and right hilar contours appear similar to the prior scout view . A focal opacity in the right upper lobe also appears unchanged allowing for differences in modality . These findings are most consistent with stable malignant disease in the chest . Small changes would not be easily detected with radiography , however . Likewise , there are several nodules in the left lung which correlate generally with prior findings , although small to moderate differences would again be difficult to detect . There is similar moderate relative elevation of the right hemidiaphragm . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Probably stable chest findings with no definite evidence for acute disease . Background abnormalities limit assessment for any potential subtle pulmonary infection , however .