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Surgical Case Reports
Fig. 5 | Surgical Case Reports

Fig. 5

From: A case of primary gastric undifferentiated high-grade pleomorphic sarcoma diagnosed with chief complaint of fever: a case report and literature review

Fig. 5

Microscopic findings showed proliferation of atypical spindle-shaped tumor cells arranged in sheets and irregular fascicles (a). Mitotic figures were frequently encountered (arrows, 20–25/10 HPF) and mild infiltration of lymphoplasmacytoid cells was noted (b). The large pleomorphic and bizarre tumor cells were also observed (c). Immunohistochemically, the tumor cells were positive for α1-antichymotrypsin (d), p-53 (e), and G-CSF (f)

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