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  Indian J Med Microbiol
 

Figure 1: (a) Tissue lined by respiratory epithelium and subepithelium showing diffuse infiltration by the tumor cells (H and E, ×400). (b) Angioinvasion by the tumor cells (H and E, ×400). (c and d) Tumor cells are positive for CD3 and CD56, respectively (IHC, ×400)

Figure 1: (a) Tissue lined by respiratory epithelium and subepithelium showing diffuse infiltration by the tumor cells (H and E, ×400). (b) Angioinvasion by the tumor cells (H and E, ×400). (c and d) Tumor cells are positive for CD3 and CD56, respectively (IHC, ×400)