PMC3125646_01
A large, unilocular radiolucency involving the right side of the mandible. Well-demarcated lesion involving 41-47 region. Destruction of buccal plate and lingual plate is seen. Extensive root resorption of 46 and 47 is seen. Lower border of mandible is intact
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The involved teeth (42 - 47) showed varying degrees of extensive root resorption with loss of interdental bone giving a floating teeth appearance [Figure 1].
Photomicrograph showing intraluminar proliferation of tumor cells made of palisading chords of plexiform pattern and sheets of basaloid cells. Few stromal cysts are seen along with capillaries (H and E, 100x)
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The cystic lining at numerous areas showed intraluminal extensions of nodules that were filled with densely packed plexiform strands and large solid follicles of basaloid cells [Figure 2].
Photomicrograph showing follicles with groups of clear cells of varying sizes with clear cytoplasm and single centrally placed nucleus (H and E, 200x)
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A large number of other follicles of the intraluminal growth contained clear cells that were numerous in number, small to large in size with clear cytoplasm and single pyknotic nucleus [Figures 3 and 4].
Photomicrograph showing clear cells seen as oval or round cells with clear cytoplasm and prominent centrally placed hyperchromatic nucleus (H and E, 400x)
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A large number of other follicles of the intraluminal growth contained clear cells that were numerous in number, small to large in size with clear cytoplasm and single pyknotic nucleus [Figures 3 and 4].
Photomicrograph showing a cystic epithelium on the right side. Spongiotic cystic epithelium satisfying Vicker and Gorlin criteria. On the left are seen small and large ameloblastic follicles as intramural invasion. Few follicles show cystic degeneration and acanthomatous change, all set in a bland stroma (H and E, 100x)
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Some of the follicles showed squamous metaplasia in the stellate reticulum-like area, whereas some showed cystic degeneration [Figure 5].