PMC4451651_01
Swelling seen in the left anterior maxillary region
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F1
A 22-year-old female reported with the complaint of swelling at the left side of anterior maxilla, since 3 months [Figure 1].
Intraoral view showing left buccal and palatal swelling
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F2
Oral hygiene status of patient was satisfactory and all the teeth were periodontally sound [Figure 2].
Orthopantomogram showing a poorly circumscribed lesion showing radiolucency with 23 missing
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F3
Photomicrograph showing staghorn pattern and blood vessels are lined by flat endothelial cells (H&E stain, x100). H&E: hematoxylin and eosin
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F4
Clearly giving a definitive picture of low-grade HPC [Figures 4-6].
Photomicrograph showing typical staghorn pattern of vascular channels, the blood vessels are lined by flat endothelial cells(H& E stain, x400)
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F5
Clearly giving a definitive picture of low-grade HPC [Figures 4-6].
Photomicrograph shows network of capillary vessels with a staghorn pattern, where lumen is lined by flat endothelial cells. The tumor cells present a pale cytoplasm with round or ovoid nuclei(H&E stain, x400)
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F6
Clearly giving a definitive picture of low-grade HPC [Figures 4-6].
Tumor showing positive reactivity with CD34 typically around vasculature (IHC stain, x40)
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F7
In most situations, the diagnosis of HPC is one of exclusion; however, in the present case, HPC was diagnosed based on clinicopathological correlation [Figures 7 and 8].
Tumor showing positive reactivity with CD 99 staining (IHC stain, x100)
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F8
In most situations, the diagnosis of HPC is one of exclusion; however, in the present case, HPC was diagnosed based on clinicopathological correlation [Figures 7 and 8].