Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . Perihilar vascular congestion is noted . Tortuosity of the descending aorta is present . The heart is mildly enlarged . There is blunting of the left costophrenic angle , suggestive of small pleural effusion . Bibasilar opacities likely reflect atelectasis . There is no pneumothorax . Compression deformities of the upper or mid thoracic vertebral bodies are likely unchanged since ___ CT exam . No displaced fracture is seen . The bones are diffusely demineralized , making evaluation for subtle fracture suboptimal .
    OUTPUT:
    
1 . No pneumothorax . No definite evidence of displaced fracture , however bones are osteopenic , which makes detection of subtle fractures suboptimal . In the setting of high clinical suspicion for rib fracture , dedicated rib series is more sensitive . 2 . Small left pleural effusion , perihilar vascular congestion and mild cardiomegaly .