Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph is obtained . A left arm PICC line is again noted with its tip residing at the expected level of the superior vena cava . The previously detected pneumonia has completely resolved in the interval . The lungs appear well aerated bilaterally . Left CP angle partially excluded . Cardiomediastinal silhouette appears normal . No pneumothorax . Bony structures intact .
    OUTPUT:
    
Interval resolution of pulmonary opacities / pneumonia . PICC line is in appropriate position .