Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding similar study of ___ . The heart size remains within normal limits . The left - sided hemidiaphragm is moderately elevated , apparently related to a gas - distended left sided colonic flexure . Similar elevation existed already on the preceding study . Thoracic aorta and mediastinal structures are unremarkable . The pulmonary vasculature is not congested . There is no evidence of acute or chronic pulmonary parenchymal infiltrates and the lateral and posterior pleural sinuses remain free . Skeletal structures of the thorax grossly unremarkable .
    OUTPUT:
    
No evidence of acute cardiovascular or pulmonary abnormalities . Moderate elevation of left - sided hemidiaphragm similar as on previous examination . Thus , no evidence of acute ongoing abnormalities .