Figure 3

Histopathology of the lung tumor. Pathological tissues stained with hematoxylin-eosin. The lung tumor (T) is well-demarcated from the non-neoplastic lung tissue (NT) (A, ×20). The tumor is composed of eosinophilic tumor cells with swollen ovale nuclei and prominent nucleoli showing a sheet-like pattern of growth (B, ×200).