Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours are within normal limits . Both lungs show mildly low lung volumes with crowding of bronchovascular markings . Bibasilar atelectasis is noted . Subclavian / brachiocephalic venous stent is unchanged in position . No focal consolidation , pleural effusion or pneumothorax is noted .
    OUTPUT:
    
No acute cardiopulmonary process . Bilateral low lung volumes with crowding of bronchovascular markings and bibasilar atelectasis .