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Representative histomorphology of tumors treated with chemotherapy versus a combination of radiation and chemotherapy. (a) Patient who received induction chemotherapy. The tumor shows prominent necrosis, demarcated by *. (b) Patient who received induction radiation with chemotherapy. The tumor shows prominent fibrotic change, demarcated by **. Arrow demarcates residual viable tumor. Both images are taken at 20x magnification on hematoxylin and eosin stained slides.
