Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal view of the chest demonstrates no fracture . The descending aorta is tortuous . The pleural and pulmonary structures are unremarkable . There is no pneumothorax or pleural effusion . No large consolidation is seen to suggest pneumonia . Mild degenerative changes are seen in the glenohumeral and acromioclavicular joints . No free air is seen under the diaphragm .
    OUTPUT:
    
No definite fracture .