Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs demonstrate low lung volumes . Cardiomediastinal and hilar contours are stable relative to prior examination . There is no pulmonary edema . There is no pleural effusion or pneumothorax . No opacity convincing for pneumonia is identified . There is no air under the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic abnormality . Overall chest appearance is similar to prior examination dated ___ .