Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . The heart size is unchanged and within normal limits . No pulmonary congestion is present . As before , there exist bilateral pleural effusion blunting the lateral and posterior pleural sinuses . The amount of pleural effusions has increased slightly , but is still not of large quantity . The area of the left hilar infiltrate has increased mildly and shows sharp delineation in comparison with the previous study . No other new abnormalities are present . As before , marked kyphotic curvature increase in the thoracic spine is noted with diffusely demineralized vertebral bodies , several of which have an anterior wedge compressed appearance . These findings are , however , unchanged .
    OUTPUT:
    
Left - sided perihilar density apparently representing lung cancer . Bilateral pleural effusion with mild degree of increment since the next preceding study six days ago .