Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart is upper limits of normal in size and the aorta is tortuous . Narrowing of intrathoracic trachea is present and may be postoperative in the setting of tracheoplasty procedure . Linear areas of atelectasis are present in the right mid lung . No focal areas of consolidation are evident , and there is no pleural effusion or pneumothorax . Compression deformities in the mid thoracic spine are similar to prior CT exams of this patient .
    OUTPUT:
    
Linear atelectasis in the right mid lung . No evidence of pneumonia .