Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ at 04 :41 and allowing for technical differences , the overall appearance is quite similar . Again seen is a left - sided PICC line , tip over proximal / mid SVC . No pneumothorax detected . Again seen is a left effusion with underlying collapse and / or consolidation and obscuration of the left hemidiaphragm , as well as persistent retrocardiac opacity . Patchy opacities at the right base medially and laterally are also similar . The cardiomediastinal silhouette is unchanged . Vascular plethora and mild vascular blurring is similar to the prior study .
    OUTPUT:
    
Overall similar to 1 day earlier .