Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in semi-upright position . Comparison is made with the next preceding similar study of ___ . The study is analyzed in direct comparison with the next preceding similar study of ___ . The previously present ___ line has been removed . With the exception of a remaining right internal jugular sheath , no other indwelling lines are noted . Heart size remains unchanged and is not significantly enlarged . Poor inspirational effort with relatively high positioned diaphragms explains crowded appearance of pulmonary vasculature on the bases , but no new parenchymal infiltrates are seen . Although the diaphragmatic contours are somewhat obscured , there is no evidence of pleural effusion obliterating the lateral pleural sinuses . No pneumothorax seen in the apical area .
    OUTPUT:
    
Stable chest findings in comparison with next preceding study . No pneumothorax .