Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal AP and lateral views of the chest were obtained . Low lung volumes result in bronchovascular crowding and bibasilar atelectasis . There is no focal consolidation , pleural effusion , or pneumothorax . No nodule or mass is seen . Cardiac and mediastinal silhouettes and hilar contours with aortic knob calcifications are unchanged . No acute osseous abnormality is identified .
    OUTPUT:
    
No acute intrathoracic process . No nodule or mass seen . Bibasilar atelectasis .