Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian PICC line is present , with tip over cavoatrial junction , similar to prior . The heart is not enlarged . Lungs are hyperinflated , raising question of background COPD . There is upper zone redistribution . There is slight patchy opacity of both lung bases medially . There is also slight right - greater - than - left patchy opacity in the suprahilar regions bilaterally . No frank consolidation or gross effusion . Small rounded opacities and lateral portion both lung bases may represent nipple shadows and would be compatible with the appearance on the ___ CTA . .
    OUTPUT:
    
Patchy opacities in both lungs , similar to the prior study .