Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A large left pleural effusion has reaccumulated compared to immediate prior examination from ___ and appears slightly increased in volume compared to the pre-thoracentesis examination from the same day . The pleural effusion exerts local mass effect with mild adjacent compressive atelectasis as well as rightward shift of mediastinal structures . Heart size is difficult to evaluate due to obscuration of the heart border by the effusion . The left superior hilar contour and the right hilar contour is unremarkable . The left apex and right lung are clear . There is no pneumothorax .
    OUTPUT:
    
Reaccumulation of large left - sided pleural effusion , increased in volume compared to pre-thoracentesis examination from ___ . Results were discussed over the telephone with Dr . ___ by Dr . ___ at 10 :09 AM on ___ at time of initial review .