Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is no focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Elevation of the left hemidiaphragm is noted .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Elevation of the left hemidiaphragm which is likely secondary to either prior injury or phrenic NERVE DYSFUNCTION . If there is desire to document diaphragmatic function , ultrasound or fluoroscopic study can be considered .