[Interventional bronchoscopy].

Patients with malignant obstruction of the central airway have been treated by interventional bronchoscopy such as Nd-YAG laser and airway stenting. These palliative therapies contribute to improving and maintaining the QOL of the patients. Photodynamic therapy (PDT) is one of the bronchoscopic therapy for centrally located early stage squamous cell carcinoma of the lung. PDT uses photosensitizing agents that accumulate in malignant tissue and can be activated by a laser energy.