Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 1 .7 x 1 .4 cm hyperdensity along the right upper hemi thorax is most consistent with known lung lesion seen on ___ CT . A heterogeneous right lower lobe opacity is only seen on frontal projection . Plate like opacity along the left lower lobe is most consistent with atelectasis . The lungs are otherwise well inflated and clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . Aortic arch calcifications are present .
    OUTPUT:
    
1 . 1 .7 cm pulmonary lesion within the right upper hemi thorax , better characterized on ___ CT . 2 . Heterogeneous right lower lobe opacity is most consistent atelectasis , however differential includes early pneumonia in the appropriate clinical setting . 3 . Left lower lobe atelectasis