Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in sitting semi-upright position . Comparison is made with the next preceding similar study obtained on ___ . Remarkable is that the heart size has increased during the latest 24 hours examination interval . There is no typical configurational abnormality , but the finding could be explained by increasing circulating blood volume . The pulmonary vasculature is slightly more distended but does not show any evidence of extravasation in the form of interstitial or alveolar edema and the lateral pleural sinus remain free . No evidence of new acute pulmonary parenchymal infiltrates are seen . No pneumothorax existing in the apical area . Remarkable is that the previously described right - sided PICC line projects now with its tip into the upper portion of the right atrium . This may be related to the described increase of the heart volume unless the PICC line has been advanced inadvertently . Observe that PICC line may cause mechanical arrhythmias if in contact with the right atrial wall .
    OUTPUT:
    
Heart size increased indicating augmented circulating blood volume , but no evidence of pulmonary edema or pleural effusion . Observe comments made regarding previously placed PICC line .