Figure 3

Tumor in the left upper lobe (A) presented a CR after two cycles of induction chemotherapy with gemcitabine plus cisplatin (B), although pathological examination found residual viable tumor by light microscopy (C) . Another tumor in left lower lobe (D) achieved a PR after two cycles of paclitaxel plus cisplatin induction therapy (E), while no cancer cells were seen in the residual specimen, and all the tumor was replaced by abundant foamy cells and lymphocytic infiltration (F).