Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate clear lungs bilaterally . Lung volumes are slightly low exaggerating size of the heart which is otherwise normal in size . Hilar contours are within normal limits . There is no pleural effusion , pneumothorax , or pulmonary edema . There is no air under the right hemidiaphragm . Air-filled loop of bowel is noted in the left upper quadrant .
    OUTPUT:
    
No acute intrathoracic abnormality . Although no acute fracture or other chest wall lesion is seen , conventional chest radiographs are not sufficient for detection or characterization of most such abnormalities . If the demonstration of trauma to the chest wall is clinically warranted , the location of any referrable focal findings should be clearly marked and imaged with either bone detail radiographs or Chest CT scanning .