PMC4451658_01
Extraoral photograph showing swelling and extension over right buccal region
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F1
Antero-posteriorly it was extending 2 cm from right ala of nose to angle of mandible [Figure 1].
Intraoral photograph showing no significant finding
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F2
No significant findings were observed on intraoral examination [Figure 2].
Computed tomography (CT) suggestive of heterogeneously enhancing lesion in close proximity to superficial lobe of right parotid gland without invasion of the adjacent structures
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F3
Computed tomography (CT) face [Figure 3] was suggestive of heterogeneously enhancing lesion in close proximity to superficial lobe of right parotid gland without invasion of the adjacent structures.
(a) Excisional biopsy of the resected tumor mass. (b) Cut sections reveals homogeneous white glistening cut potato appearance. (c) Cut sections show scattered areas of hemorrhages and necrosis
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F4
Scattered areas of hemorrhages and necrosis were also noted [Figure 4].
Scanner view showing lesional tissue which is encapsulated (H&E stain, x40) H&E = Hematoxylin and eosin
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F5
Hematoxylin and eosin (H and E) stained sections showed lesional tissue which was encapsulated [Figure 5].
Scanner view showing duct like spaces with eosinophilic coagulum. (H&E stain, x40)
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F6
The lesional tissue was composed of neoplastic glandular epithelial cells arranged in the form of sheets interspersed with numerous small and large duct-like structures filled with eosinophilic coagulum [Figure 6].
Low-power view showing myxochondroid areas having clear cells with eccentric nuclei (H&E stain, x100)
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F7
These cells were spindle shaped at places and round to oval at other places with hyperchromatic to vesicular nuclei along with chondromyxoid areas [Figure 7].
Low-power view showing pleomorphic and hyperchromatic cells with few mitotic figures (H&E stain, x100)
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F8
At places, pleomorphic and hyperchromatic cells with few mitotic figures were evident [Figure 8].
Low -power view showing the clear cells and hyalinized areas. (H&E stain, x200)
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F9
Clear cells and hyalinized areas were interspersed in between these neoplastic glandular epithelial cells [Figure 9].
Higher-power view showing the numerous malignant pleomorphic and hyperchromatic cells with osteoid tissue and squamous metaplasia (H&E stain, x400)
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F10
These cells showed squamous metaplasia, along with osteoid-like tissue [Figure 10].
Higher-power view showing spindle-shaped cells with duct-like spaces and eosinophilic coagulum with few clear cells (H&E stain, x400)
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F11
Higher-power view showed spindle-shaped cells with duct-like places and eosinophilic coagulum with few clear cells [Figure 11].
Higher-power view showing spindle-shaped cells with duct-like places filled with eosinophilic coagulum, with necrotic areas and clear cells at places (H&E stain, x400)
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F12
Higher-power view showed spindle-shaped cells with necrotic areas at places and clear cells [Figures 12 and 13].
Higher-power view showing spindle-shaped cells with duct-like places filled with eosinophilic coagulum (H&E stain, x400)
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F13
Higher-power view showed spindle-shaped cells with necrotic areas at places and clear cells [Figures 12 and 13].