Fig. 1
a Chest CT revealed a mass in the posterior basal segment of the left lower lobe (size 3.7 × 3.3 cm) with poorly-defined boundary, peripheral burr and lobulation sign. b Enhanced CT showed inhomogeneous enhancement of the mass with the branches of left inferior pulmonary artery and vein passing through. c CT-guided percutaneous transthoracic biopsy. d–g PET/CT showed SUVmax of the mass, the lpsilateral hilar and mediastinal lymph nodes were high