PMC3303511_01
Clinical photograph - extra oral
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F1
Clinical examination showed the presence of a diffuse, nontender swelling of approximately 6 x 4 centimeters over the left angle-ramus region of mandible [Figure 1].
Clinical photograph - intraoral
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F2
Intraorally the swelling extended from 34 to retromolar region, obliterating the buccal vestibule [Figure 2].
Panoramic view
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F3
A panoramic radiograph was taken which showed a multilocular radiolucency, which extended from 34 region toward coronoid and condyle, involving both [Figure 3].
Cyst like areas, epidermoid, and clear cells - H and E, x100
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F4
H and E stained sections of the biopsy specimen showed cystic spaces filled with eosinophilic material, surrounded by epidermoid cells and sheets of large polygonal cells with centrally placed nuclei, clear cytoplasm, and sharply defined cytoplasmic borders [Figure 4].
Mucus cells - mucicarmine stain, x400
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F5
Mucus-secreting cells were visualized through mucicarmine staining [Figure 5].
Clear cells - PAS with diastase resistance, x400
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F6
The clear cells retained PAS positivity after diastase digestion [Figure 6] with a focal positivity for mucicarmine [Figure 7].
Clear cells - mucicarmine stain, x400
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F7
The clear cells retained PAS positivity after diastase digestion [Figure 6] with a focal positivity for mucicarmine [Figure 7].