Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes , which accentuate the cardiomediastinal contours and bronchovascular structures . There are bilateral patchy lower lobe opacities . There is no pneumothorax . The mediastinal and hilar contours are unchanged with widening of the cardiomediastinal silhouette , related to known mediastinal lipomatosis . There are degenerative changes along the lower thoracic spine .
    OUTPUT:
    
1 . Bilateral patchy lower lobe opacities , which could represent atelectasis , aspiration or pneumonia . In the setting of low lung volumes , characterization is limited and a repeat chest radiograph with increased inspiratory level may be helpful in this regard . 2 . Stable , widened cardiomediastinal silhouette related to known mediastinal lipomatosis .