Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were reviewed . The cardiomediastinal and hilar contours are normal . There is no pleural effusion or pneumothorax . Streaky lucencies overlying the neck on the frontal view and abnormal lucency anterior to the trachea on the lateral view are concerning for pneumomediastinum . There is no focal consolidation concerning for pneumonia . Pulmonary vasculature is within normal limits .
    OUTPUT:
    
Pneumomediastinum . No pneumothorax . No other acute process . Dr . ___ ___ this result to Dr . ___ ___ telephone at 2 :22 AM on ___ , at the time of discovery .