Uncategorized White Out from large pleural effusion and probable hemothorax under tension with atelectasis of the right lung85-year-old female with a history of lung cancer, presents with dyspnea and hypotension. CXR shows white out of the right hemithorax with pressure effect characterised by narrowing of the distal trachea cardio-mediastinal shift to the left and atelectasis in the left lower lobe.Ashley Davidoff MD TheCommonVein.netSee 106Lu