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Figure 2: (a) Tumor cells are composed of clear to eosinophilic cytoplasm with prominent nucleolus (H and E, ×200). (b) Tumor shows sparse weak positivity for PAX8 (IHC, ×100). (c) Tumor shows strong positivity for CD10 (IHC, ×200). (d) Tumor is negative for S100 (IHC, ×100)

Figure 2: (a) Tumor cells are composed of clear to eosinophilic cytoplasm with prominent nucleolus (H and E, ×200). (b) Tumor shows sparse weak positivity for PAX8 (IHC, ×100). (c) Tumor shows strong positivity for CD10 (IHC, ×200). (d) Tumor is negative for S100 (IHC, ×100)