Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Endotracheal tube resides approximately 4 .5 cm above the carinal . Upper lung lucency suggests pneumonia . There is opacity in the lower lungs , right greater than left concerning for pneumonia . Heart size appears normal . Mediastinal contour is unremarkable . Prominence of the pulmonary hilar vasculature may reflect pulmonary hypertension . Bony structures appear intact .
    OUTPUT:
    
Lower lung pneumonia . Emphysema . ET tube positioned appropriately .