PMC3303505_01
Patient with a large abnormal swelling on the right side of face
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F1
She presented with a disfiguring swelling on the right side of neck of approximately two years duration [Figure 1]. Swelling was associated with pain and difficulty in chewing.
Tumor nests in a fibrous stroma. (H and E, x100)
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F2
Tumor cells formed nests supported by fibrous connective tissue stroma [Figure 2].
Periphery of tumor nests having pallisaded cells. (H and E, x200)
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F3
At the periphery of the nests, there were columnar cells organized in a pallisaded fashion [Figure 3].
Cells displaying cytoplasmic granularity with pyknotic nuclei, some of which are eccentric. (H and E, x400)
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F4
The inner cell mass showed round to polygonal cells with abundant granular cytoplasm and small pyknotic nuclei [Figure 4].
Metastasis in lymph node showing tumor cells with granular cytoplasm. (H and E, x200)
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F5
One lymph node showed tumor metastasis characterized by the presence of granular cells [Figure 5].