Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at 19 :52 is submitted .
    OUTPUT:
    
Interval decrease in size of left pleural effusion status post thoracentesis with no evidence of pneumothorax . Status post median sternotomy with stable cardiac contour . Left perihilar and suprahilar soft tissue and persistent left apical opacity consistent with lymphadenopathy and mass when correlated with chest CT dated ___ . Patchy opacity at the right base likely reflects atelectasis in the setting of lower lung volumes . No pulmonary edema .