Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient 's condition required examination in sitting semi-upright position using AP frontal and left lateral views . Comparison is made with the next preceding single AP chest view examination of ___ . Comparison of frontal views demonstrates grossly unchanged findings with relatively high - positioned diaphragms obscuring the heart size resulting in multiple plate atelectases on the bases . Lateral pleural sinuses remain free . No evidence of new acute infiltrates and no pneumothorax seen in the apical area . The lateral view demonstrates the patient in markedly reclined position . The linear atelectatic densities can be identified again . There is no evidence of significant fluid accumulation in the posterior dependent pleural sinuses . Heart size can not be assessed as borders are obscured related to patient 's high - positioned diaphragms . Pulmonary vasculature is not demonstrating a congestive pattern .
    OUTPUT:
    
Bilateral basal atelectasis , infectious overlie can not be excluded . There is , however , no evidence of pleural effusion and no pneumothorax is seen .