Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiomediastinal silhouette and pulmonary vasculature are unremarkable . The lungs are clear . No definite pneumothorax or pleural effusion is identified . Chronic deformity at the left proximal humerus is incidentally noted . There also partially imaged screws in the proximal right humerus .
    OUTPUT:
    
No acute intrathoracic process .