Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Midline sternotomy wires again noted , the first and second from the top appear fragmented as on prior . PICC lines noted on prior exams have both been removed . Extensive bilateral pulmonary opacity appears essentially unchanged . This pattern is No pneumothorax . No large effusion . Cardiomediastinal silhouette grossly stable . Bony structures intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Interval removal of both PICC lines . Extensive pulmonary opacity persists though etiology unclear . Please correlate clinically .