Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates decreased lung volumes . The cardiac silhouette is enlarged . Pulmonary vasculature congestion has resolved since prior . No definite focal consolidation is identified . No large pleural effusion or pneumothorax is noted .
    OUTPUT:
    
No acute intrathoracic abnormality .