Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is re- demonstrated . The aorta is diffusely calcified and mildly tortuous . The mediastinal and hilar contours are otherwise unremarkable without evidence of pulmonary vascular congestion . 10 mm nodular opacity is seen projecting over the right upper lobe not clearly seen on the previous exam . Lung volumes are low with mild bibasilar atelectasis , but no focal consolidation . No pleural effusion or pneumothorax is clearly evident . Dextroscoliosis of the thoracolumbar spine with associated degenerative changes are noted . Spiral tacks are seen in the left abdomen .
    OUTPUT:
    
Mild bibasilar atelectasis in the setting of low lung volumes . 10 mm nodular opacity projecting over the right upper lobe appears new and can be further assessed with a nonemergent chest CT if clinically indicated .