Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . Left upper lobe lung nodule described in the neck CT is not seen on plain film . Mediastinal and cardiac contours are within normal limits . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
There is no pneumonia . Left upper lobe lung nodule described on neck CT is not visible in this x-ray .