Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left anterior chest wall dual lead pacer is unchanged . Median surrounding wires and anterior fixation plate are unchanged . Right - sided PICC tip terminates at the cavoatrial junction . Lung volumes are low . Heart size is top - normal with unfolding of the thoracic aorta . Hilar contours are unremarkable . Lungs are clear . Pleural surfaces are clear without effusion or pneumothorax . Sclerotic focus in the proximal right humerus is unchanged , potentially enchondroma versus infarct .
    OUTPUT:
    
No acute cardiopulmonary abnormality . Appropriate position of the right PICC tip .