Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portions of the lungs are obscured by the overlying hardware however there appears to be mild cardiomegaly . The hilar and mediastinal contours appear to be unremarkable . Limited assessment of the lungs appears unremarkable without evidence of pneumothorax or large pleural effusion . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .