Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates 4 .7 cm above the carina . Enteric tube extends to at least the body of the stomach . There is suggestion of a 2 cm ill - defined opacity in the right mid / lower lung , chronicity indeterminate . There is mild interstitial irregularity , particularly at the lung bases , which may reflect underlying chronic lung disease . No sizeable pleural effusion or pneumothorax . Cardiomediastinal contours are within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
1 . Endotracheal tube terminates 4 .7 cm above the carina . 2 . Incidentally noted 2 cm ill - defined opacity in the right mid / lower lung . Recommend correlation with prior imaging to determine the chronicity . If none are available , a chest CT is recommended to exclude malignancy , if / when clinically appropriate .