Figure 1: A 72-year-old male patient with lung cancer in the left upper lobe (a). PET/CT showed right interlobar LN enlargement and 18F-fluorodeoxyglucose accumulation in the nodule (b). The maximum standard uptake value of the LN was 3.63. Endobronchial ultrasound-guided transbronchial needle aspiration (c) specimens contained abundant lymphocytes without malignant cells (hematoxylin and eosin, ×400) (d). The pathological findings of right superior lobectomy revealed adenocarcinoma. LN follow-up with image showed no evidence of malignancy (e).