Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright frontal view of the chest . A well - circumscribed right upper lobe soft tissue mass measuring 6 .2 x 7 .6 cm is better characterized on the prior CT chest . The lung volumes are low which causes bibasilar atelectasis . There is no pleural effusion or pneumothorax . The aortic knob is calcified . The heart size is normal .
    OUTPUT:
    
Right upper lobe soft tissue mass better characterized on a prior chest CT . No hemorrhage , pleural effusion or pneumothorax .