Figure 3. Photomicrographs of the biopsy specimen showing in A and B a dense proliferation of neoplastic cells in the submucosa (H&E, original magnification 10X (A), 20X (B). At higher power, it is noticed a sheet of atypical lymphocytic cells showing prominent and hyperchromatic nuclei besides atypical mitosis (C and D) (H&E, original magnification 40X).
