Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next previous PA and lateral chest examination of ___ . Heart size and appearance of thoracic aorta including mediastinal structures are unchanged . The pulmonary vasculature is not congested . No evidence of acute or chronic parenchymal infiltrates is present , and the lateral and posterior pleural sinuses are free . No evidence of new acute pulmonary parenchymal or pleural abnormalities , and no evidence of pneumothorax in the apical area . On previous examination identified minute peripheral plate atelectasis on the left base has resolved . Very mild degree of degenerative changes is seen in the thoracic spine vertebral body anteriorly . They have not progressed significantly . Our records include multiple previous chest CT examinations , the most recent dated ___ , ___ , ___ , ___ and again ___ . Previously identified scattered ground - glass densities were shown , but these are two subtle to be identified conclusively on the plain chest examinations .
    OUTPUT:
    
No evidence of significant cardiac enlargement , CHF , or acute pulmonary infiltrates .