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. 2016 Feb;13(2):265–275. doi: 10.1513/AnnalsATS.201509-650FR

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Figure 1. — (A) An optical fiber with 20-mm cylindrical diffuser end (Optiguide Fiber Optic; CuraScript/Pinnacle Biologics, Chicago, IL). (B) This bronchoscopic image shows the photodynamic therapy (PDT) catheter (arrow) during illumination of the left upper lobe and distal left main stem to treat the carcinoma in situ. (C) Bronchoscopic image showing the mucus sloughing of the distal left main stem and the left upper lobe (arrow) 2 days post PDT. (D) Bronchoscopic image showing the distal left main stem and left upper lobe 4 weeks post PDT.