Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the most recent prior study , there is increased opacification in the medial right lung base which may represent an early developing pneumonia in the appropriate clinical context but could also represent atelectasis . A large left juxtahilar mass is unchanged , corresponding to the patient 's biopsy - proven small cell carcinoma , better characterized on recent CT of the chest . Bilateral calcified pleural plaques are present . No significant pleural effusion or pneumothorax is detected . The pulmonary vasculature is not engorged . The cardiac silhouette is top normal in size but stable . The thoracic aorta is tortuous . The trachea is midline .
    OUTPUT:
    
1 . Slightly increased opacification at the medial right lung base could represent an early developing pneumonia in the appropriate clinical context or , alternatively , atelectasis . 2 . Left juxtahilar mass corresponding to known small cell carcinoma , better characterized on recent CT of ___ . 3 . Calcified pleural plaques compatible with prior asbestos exposure .