Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate - sized right pleural effusion and heterogeneous opacification of the retrocardiac right lower lobe is new and is worrisome for pneumonia . Multiple additional nodular opacities in both lungs as seen in the left lower lobe appear minimally larger since the prior study , worrisome for progression of known metastatic disease . Right upper extremity PICC terminates in the cavo-atrial junction . Linear left basal atelectasis is unchanged . There is no pneumothorax .
    OUTPUT:
    
1 . Right lower lobe pneumonia . 2 . Mild progression of metastatic disease . 3 . Right upper extremity PICC tip in the cavo-atrial junction .