PMC2892663_01
Buccal mucosa BFH: Preoperative view of the lesion.
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fig1
The mucosal surface appeared smooth and moderately inflammatory, possibly due to local trauma (Figure 1).
Buccal mucosa BFH: Intraoperative view of the lesion.
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fig2
On surgical excision the mass was easily dissected from the surrounding tissues (Figure 2).
Buccal mucosa BFH: Surgical resection specimen.
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fig3
The mass was grossly round in appearance, with a white grey surface (Figure 3).
Spindle-shaped cells in a storiform pattern (H&E stain, x40).
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fig4
Microscopically the tumour was composed of fibroblast-like spindle cells with fascicular and focally storiform arrangement (Figure 4).
Spindle-shaped tumour cells were positive for CD34 (diaminobenzidine, x400).
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fig5
The tumour cells showed strong immunoreactivity for vimentin, weak and focal immunoreactivity for CD34 (Figure 5) and some tumour cells (histiocyte-like) were positive for CD68 (KP 1) (Figure 6).
Histiocyte-like tumour cells were positive for CD68 (diaminobenzidine, x400).
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fig6
The tumour cells showed strong immunoreactivity for vimentin, weak and focal immunoreactivity for CD34 (Figure 5) and some tumour cells (histiocyte-like) were positive for CD68 (KP 1) (Figure 6).