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Illustration of value of detection of positron emission tomography (PET)-occult lymph node metastases in patient 1, where nodal station 4R was PET negative but transbronchial needle aspiration (TBNA) demonstrated malignant involvement. a) Endobronchial ultrasound (EBUS)-guided TBNA and PET-planned radiotherapy. b) PET-only planned radiotherapy. The area in red is the planning target volume.
