Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right upper lobe opacities spanning 2 .6 cm correlate to a cluster of nodules seen on the ___ CT , not significantly changed since then . No focal consolidations which are concerning for pneumonia at this time , although the cluster of nodules in the right upper lobe may be related to atypical infectious disease . There may be a small right pleural effusion . The left pleural looks clear . Cardiac size is normal . The aorta is tortuous . No pneumothorax .
    OUTPUT:
    
Clustered nodules in the left upper lobe appear relatively stable since ___ but may represent atypical infectious disease