Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate mildly low lung volumes with otherwise clear lungs . The cardiac and mediastinal contours are within normal limits . No hilar fullness , indicative of pulmonary vascular congestion is seen . No pleural is detected .
    OUTPUT:
    
No evidence of pulmonary edema or pneumonia .