Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Coronary arteries are heavily calcified . There is a moderate - to - large pleural effusion on the left , new since the prior study . Associated left basilar atelectasis is likely . Patchy right basilar opacity is not specific , but could be explained by atelectasis . There is no pneumothorax . A moderate - to - severe upper thoracic wedge compression deformity appears unchanged . Mild degenerative changes are similar along the lower thoracic spine . A new contour deformity of the left sixth rib is incompletely characterized , but apparently new ; however the single image of it is more suggestive of prior than recent injury .
    OUTPUT:
    
1 . New moderate - to - large left - sided pleural effusion ; differential considerations include hemothorax . 2 . Contour abnormality of the left sixth rib fracture , not completely characterized but apparently new . Dedicated left rib films may be helpful if acute injury is suspected to refer to this area , although the contour abnormality may be more chronic .