Two cases of bronchial stump aspergillosis were diagnosed 5 and 6 years after pneumonectomy for lung cancer. In each case, the fungal mass was endoscopically removed using standard forceps. A recurrence of the fungal mass persisted until all visible protruding nylon threads in the airway lumen were destroyed with a Nd:YAG laser. Removal of the visible suture is necessary for eliminating the infection. No additional local or systemic antifungal therapy is needed.