Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a tracheostomy in - situ . , unchanged in appearance compared to a prior chest radiograph from ___ . Lung volumes are unchanged . There is unfolding of the thoracic aorta , unchanged compared to the prior study . No consolidation , pneumothorax or pleural effusion seen . There is mild cardiomegaly with prominence of the pulmonary vasculature consistent with mild congestive heart failure . There is a large distended air filled loop of bowel in the central upper abdomen consistent with a markedly distended sigmoid colon . No free air seen .
    OUTPUT:
    
Findings consistent with mild congestive heart failure .