Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed and compared to the prior studies . Linear opacities in the left lower lung represent atelectasis ; otherwise , the lungs are clear without focal consolidation , pulmonary edema , pleural effusion or pneumothorax . Aortic calcifications and mild cardiomegaly are unchanged . There are no concerning osseous or soft tissue lesions .
    OUTPUT:
    
No radiographic evidence of pneumonia .