Young adult with cystic fibrosis with continued shortness of breath after chest tube placement

CXR of chest tube malposition with chest tube in the lung parenchyma — CXR AP (left) shows chronic interstitial fibrosis and scarring in the lungs, a left-sided chest tube, and a moderately-sized basilar left pleural air collection manifesting as a deep sulcus sign. Gross pathological specimen (right) shows the left chest tube entering the upper lobe of the left lung.

The diagnosis was persistent pneumothorax in a patient with cystic fibrosis due to the chest tube tip not being in the pleural space.