Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . The lungs are clear of consolidation , large effusion , or pulmonary vascular congestion . Cardiac silhouette is within normal limits . There is a tortuous descending thoracic aorta . No acute osseous abnormalities detected . Degenerative changes of the shoulders bilaterally and widening of the left AC joint is and which is incompletely visualized .
    OUTPUT:
    
No acute cardiopulmonary process .