Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC is identified with tip projecting over the upper SVC . Coarse interstitial markings seen throughout the lungs without focal consolidation . Moderate cardiomegaly is again seen . Median sternotomy wires and prosthetic aortic valve are identified . No acute osseous abnormalities .
    OUTPUT:
    
Increased interstitial markings potentially due to a combination of chronic underlying interstitial process and mild edema . No focal consolidation .