Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large left pleural effusion causing near complete collapse of the entire left lung has increased SLIGHTLY SINCE study of ___ causing CAUSING MORE rightward tracheal and mediastinal shift . A small portion of the left upper lobe remains aerated . MILD INTERSTITIAL PULMONARY EDEMA WHICH PROGRESSED BETWEEN ___ AND ___ IS NO WORSE . There is no focal right - sided consolidation or pleural effusion . There is no pneumothorax . The osseous structures and upper abdomen are unremarkable .
    OUTPUT:
    
SLIGHT INCREASE OVER LESS THAN 2 MONTHS IN THE ALREADY LARGE LEFT PLEURAL EFFUSION RESPONSIBLE FOR A NEAR COLLAPSE OF THE LEFT LUNG . STABLE MILD INTERSTITIAL PULMONARY EDEMA .