Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for technical differences , the overall appearance is similar . Again seen is CHF with interstitial edema , bilateral small to moderate effusions and underlying collapse and / or consolidation . CHF findings are probably slightly improved . Cardiomediastinal silhouette is unchanged . ET tube , NG tube with tip extending beneath diaphragm , and right IJ line noted . There is an unusual is semi circular density overlying the lower left heart medially -- this has been present on multiple prior films , though its position appears to change . It appears to correspond to a a metallic density in the superficial soft tissues of the left chest , possibly a fragment of sternal wires .
    OUTPUT:
    
CHF with interstitial edema , small to mild bilateral effusions and underlying collapse and / or consolidation remains present . Possible mild improvement in CHF findings . No pneumothorax detected . Metallic foreign body again noted .