Fig. 1

Computed tomography of the chest in pulmonary side (a) and mediastinal side (b). Helical chest CT scan. Axial cut after contrast injection. The pulmonary window (a) showed a heterogeneous tissue process developed at the expense of the posterior segment of the left upper lobe spiculated contours with lymphangitis around the tumor. This tumor measuring 5.5 × 6 cm. On mediastinal window (b): there were no pathologic mediastinal lymph nodes. Vascular axes were free and had normal caliber