Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Aortic valve replacement , midline sternotomy wires , and dual lead pacer appear unchanged . Right hemidiaphragmatic elevation is again noted . Curvilinear coarse calcifications projecting over the heart likely correspond with mitral annular calcification . The heart appears at least mildly enlarged . There is hilar congestion with probable mild interstitial pulmonary edema . No large effusion is seen . There is no pneumothorax . The imaged bony structures appear intact .
    OUTPUT:
    
Mild cardiomegaly and mild edema . Elevated right hemidiaphragm .