PMC4065457_01
Extra oral photograph revealed a pre-auricular swelling on the left side of the face
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F1
A 31/2-year-old Indian boy visited a private dental clinic with a complaint of a small painless mass in the region of the left zygomatic arch [Figure 1].
Computed tomography scan revealed radiodensity around the ramus of the mandible on left side
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F2
Gross image showing a lobulated mass with a glistening jelly-like surface and consistency
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F3
On macroscopic examination, the tumor was solid and lobulated [Figure 3].
Myxoid areas with loose fibrillar collagen and inflammatory cell infiltrate (H&E stain, x40)
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F4
The tumor cells within the lobules were spindle and stellate-shaped with eosinophilic cytoplasm [Figure 4].
Foci of chondroid differentiation in a myxoid background with fibrillary collagen and few blood vessels (H&E stain, x100)
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F5
The chondroid areas showed tumor cells residing in spherical and oval lacunar spaces surrounded by hyaline-type matrix [Figure 5].
Foci of chondroid differentiation showing chondrocytes in lacunae and few blood vessels (H&E stain, x200)
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F6
There was no evidence of mitotic figures or pleomorphism in the tumor cells [Figures 6 and 7].
Myxoid component and chondroid differentiation showing chondrocytes in lacunae and few blood vessels seen (H&E stain, x200)
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F7
There was no evidence of mitotic figures or pleomorphism in the tumor cells [Figures 6 and 7].