Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable frontal chest radiograph demonstrates intact median sternotomy wires , prosthetic mitral valve , and right IJ CVL unchanged in position . Interval removal of right chest tube . The right lung is well inflated with right lower lobe atelectasis as well as atelectasis / scarring at site of prior chest tube . 1 .7 x 2 cm right mid lung nodule projecting over the right third anterior rib has increased in size over 24 hours . No pleural effusion . New small left pneumothorax with deep sulcus sign . Miniscule right pneumothorax is present . Persistent moderate cardiomegaly . Mediastinal contour and hila are otherwise unremarkable . Limited assessment of upper abdomen is within normal limits .
    OUTPUT:
    
1 . New small left pneumothorax with miniscule right pneumothorax . 2 . Possible 1 .7 x 2 cm right mid lung nodule , increased in size over 24 hours . Differential includes abscess , septic embolus . Recommend dedicated PA and lateral chest radiograph to confirm . 3 . Right lower lobe atelectasis . 4 . Stable moderate cardiomegaly .