Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding chest examination of ___ . The heart size remains within normal limits . No configurational abnormalities are seen . Unremarkable appearance of thoracic aorta . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present and the lateral and posterior pleural sinuses are free . No pneumothorax in apical area on frontal view . When comparison is made with the next preceding examination of ___ , the at that time crowded appearance of the pulmonary vasculature at the bases has resolved , probably related to better inspirational effort . Also , the suspected left lateral and posterior parenchymal infiltrate has cleared up and there are no remaining pulmonary parenchymal abnormalities present . Similar as on the preceding examination , moderate degree of degenerative changes is seen in the thoracic spine but no evidence of vertebral body compression fracture is seen .
    OUTPUT:
    
Improved respirational status , no evidence of remaining pulmonary parenchymal infiltrates .