Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrates clear lungs bilaterally . Heart size is top normal . There is no pleural effusion , evidence to suggest pulmonary edema , or pneumothorax . Visualized osseous structures are unremarkable . No air is identified under the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic abnormality .