Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiograph of the chest shows a right PICC with the tip terminating at the low portion of the SVC . This is unchanged since ___ . The tracheostomy tube is in standard position . The lung volumes remain low . There is some airspace opacity at the right base which may be atelectasis but raises the concern for pneumonia in the appropriate clinical setting . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Satisfactory positioning of right PICC in the low SVC . Opacity at the right lower lung which could be pneumonia or atelectasis .