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. 2018 Jan 22;14:23. doi: 10.1186/s12917-018-1344-0

Fig. 4.

Fig. 4

Primary intraosseous squamous cell carcinoma (PIOSCC) of the mandible in the cat. a Sheets of polygonal neoplastic cells with eosinophilic, nongranulated cytoplasm and round to oval nuclei with prominent nucleoli are evident infiltrating the bony tissue. A focus of dyskeratotic neoplastic cells is present in the left bottom corner. HE. Bar = 100 μm b The neoplastic cells exhibit a moderate to marked positive cytoplasmic reaction for cytokeratin. Immunohistochemistry for cytokeratin. Bar = 100 μm