Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for slight patient rotation , heart size and mediastinal contours are unchanged and within normal limits . There is new slight elevation of the left hemidiaphragm with linear opacity at the left lung base , consistent with atelectasis . No definite evidence of consolidation . No pleural effusion or definite evidence of pneumothorax ; a linear density at the right lung apex likely relates to a skin fold . Osseous structures appear within normal limits .
    OUTPUT:
    
New left basilar atelectasis , no definite evidence of consolidation .