Figures & data
Figure 1 (A, B) The chest radiograph (A) and contrast-enhanced axial chest CT image with a mediastinal-window setting (B) obtained at our hospital showing a large mass (arrows in A and B) in the left upper lobe. The mass exhibits heterogeneous contrast enhancement with a central low-attenuation area. Note blunting of the left costophrenic angle secondary to left pleural thickening. There is no enlarged mediastinal or hilar lymph node.
![Figure 1 (A, B) The chest radiograph (A) and contrast-enhanced axial chest CT image with a mediastinal-window setting (B) obtained at our hospital showing a large mass (arrows in A and B) in the left upper lobe. The mass exhibits heterogeneous contrast enhancement with a central low-attenuation area. Note blunting of the left costophrenic angle secondary to left pleural thickening. There is no enlarged mediastinal or hilar lymph node.](/cms/asset/45160072-f65e-4f12-81db-bb7a16f9a2b0/didr_a_262410_f0001_b.jpg)
Figure 2 (A–D) Histopathology revealed (A) Tumor admixed with necrotic tissue (HE stain, 100x), (B) Gram-negative bipolar rods resembling safety pins (Brown-Hopp stain, 1000x), (C) Non-small cell carcinoma favor adenocarcinoma (HE stain, 200x), (D) TTF-1 immunohistochemistry positive nuclear staining (200x).
![Figure 2 (A–D) Histopathology revealed (A) Tumor admixed with necrotic tissue (HE stain, 100x), (B) Gram-negative bipolar rods resembling safety pins (Brown-Hopp stain, 1000x), (C) Non-small cell carcinoma favor adenocarcinoma (HE stain, 200x), (D) TTF-1 immunohistochemistry positive nuclear staining (200x).](/cms/asset/6d747e8c-569e-48ee-9f7b-024984f1e7f5/didr_a_262410_f0002_c.jpg)