Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates no focal opacification concerning for pneumonia . When compared to prior radiograph dated ___ , there is been little interval change . Stable cardiomediastinal and hilar contours are identified . There is no pleural effusion . Patient is status post left total shoulder arthroplasty as well as plate and screw fixation of a left distal humeral fracture .
    OUTPUT:
    
No acute intrathoracic abnormality .