Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The lateral aspect of the right hemi thorax is excluded from view . The imaged portions of the lungs appear clear . Volumes are low . No large pneumothorax . No convincing signs of congestion or edema . Heart is top - normal in size . Mediastinal contours unremarkable . Bony structures appear grossly intact .
    OUTPUT:
    
Limited exam without definite signs of pneumonia .