Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Obscuration of the right heart border with wedge opacity projecting over the right middle lobe is noted . Lungs are otherwise notable for increased interstitial markings , overall improved since priors . There is no effusion . Mild cardiomegaly is again seen . Left chest wall dual lead pacing device is again noted . IVC filter visualized within the abdomen .
    OUTPUT:
    
Right middle lobe opacity compatible with atelectasis and posssible infection .