Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A right upper extremity PICC line is seen extending into the region of the SVC though the tip is not clearly visualized . There is a pronounced levoscoliosis of the spine , partially imaged with the apex at the lower thoracic spine . Retrocardiac opacity is noted , raising potential concern for pneumonia . The right lung appears clear . No large effusion or pneumothorax . Mediastinal contour is grossly unremarkable . No acute osseous injury .
    OUTPUT:
    
Retrocardiac opacity raising concern for pneumonia . PICC line noted extending into SVC region though tip poorly visualized .