Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Diaphragms are flattened , consistent with COPD . The heart is not enlarged . Vague rounded soft tissue density in the AP window corresponds the AP window lesion seen on the ___ CT scan . Lesions seen in the right and left upper lobes on the ___ CT are not well depicted radiographically . No CHF , focal consolidation or effusion is detected . Subsegmental atelectasis / scarring and the infrahilar regions bilaterally is similar to the prior study . No new infiltrate is identified . On the AP view , with the arms both slightly abducted , there is asymmetry of the breast shadows larger and / or lower on the right . This could be accentuated by differences in positioning .
    OUTPUT:
    
No acute pulmonary process identified . Known left AP window lesion again noted . Abnormalities seen in the right and left upper lobes on the previous CT scan are not well depicted radiographically . Possible asymmetry of the breasts , best correlated clinically .