Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest was obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding similar study of ___ . The previously existing small right - sided apical pneumothorax can not be identified anymore . Previously described bilateral disseminated nodular densities unchanged . Right - sided pleural density appears stable . Unchanged position of previously described right - sided basal small caliber pigtail catheter for pleural drainage . No new pulmonary or cardiovascular abnormalities , no mediastinal shift .
    OUTPUT:
    
Resolution of previously regressing small right - sided apical pneumothorax . Page was placed to Dr . ___ at 1 :07 p .m .