Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable chest radiograph demonstrates unremarkable hilar and cardiac silhouettes . There is redemonstration of the right upper lobe mass with less circumscribed borders compared to ___ and overall increased hazy opacification more peripheral to mass . No evidence of pneumothorax or pleural effusion .
    OUTPUT:
    
No pneumothorax . Increased opacification of right upper lobe with increasingly indistinct borders likely due to hemorrhage . Other less likely possibilities include increased size of mass , obstructive pneumonitis , or lymphangitic spread .