Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Widespread multifocal parenchymal opacities are minimally improved compared to prior examination with dissipation of peripheral opacities in the right apex . There is likely a small left - sided pleural effusion , although it is not substantially increased compared to yesterday 's examination . Endotracheal tube is in appropriate position , 4 cm cranial to the carina . A right - sided PICC terminates at the level of the mid-to - lower SVC . A wide bore right internal jugular central venous catheter terminates in the right atrium . An upper enteric tube courses past the stomach with the tip out of view and possibly post pyloric .
    OUTPUT:
    
1 . Mild improvement of severe multifocal pneumonia , edema or ARDS : 2 . Satisfactory position of lines and tubes . Upper enteric tube may be located post-pylorically .