Fig. 1

Chest X-ray and computed tomography showed a tumor in the left lung field. a CXR showed a round mass in the left upper lung field. b CT coronal image demonstrated the mass anteriorly within the left upper lobe. c CT scan revealed a 3.4 × 3.1 cm left upper lobe pulmonary mass lesion most compatible with primary lung cancer. d CT scan showed abnormal left hilar and mediastinal adenopathy (arrow) suggestive of metastatic nodal involvement