Polypoid Carcinoma of the Oropharynx with Stromal Ossifying Myofibroblastic Proliferation: A Case Report and Literature Review

<div><i>Immunohistochemistry</i>. (a) Intense and diffuse positivity for CD99 in the spindle elements. (b) Ki-67 positivity in the spindle elements. (c) Positivity for CD34 in the superficial granulation tissue. (d) Positivity for CD34 in the core.</div>

Case Reports in Pathology

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Figure 5

Figure 5: Polypoid Carcinoma of the Oropharynx with Stromal Ossifying Myofibroblastic Proliferation: A Case Report and Literature Review 