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 AP and lateral chest examination of ___ . The present frontal view again demonstrates the previously described marked cardiomegaly . Appearance of pulmonary vasculature has changed markedly with now prominent perivascular haze mostly over the bases with general distended pulmonary vasculature ( plethora ) indicating development of pulmonary congestion since the next preceding examination . Mild blunting of the left lateral pleural sinus may have increased slightly , indicating small amounts of pleural effusions . There is no evidence of pneumothorax . There is some evidence of contrast material location in a vertebral body of the upper thoracic spine , but skeletal detail on this portable chest examination is suboptimal .
    OUTPUT:
    
Development of more advanced CHF since next preceding examination . No pneumothorax .