PMC3303504_01
(a) Orthopantamograph shows well defined radiolucency with impacted 23. (b) Occlusal radiograph also shows well defined radiolucency with impacted 23. (c) Gross examination shows a globular mass, brownish black in color, firm in consistency with tooth attached to the specimen at the cervical area
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F1
Radiographic examination showed a well-defined radiolucency with impacted 23 [Figures 1a and b]. Grossly it was a globular mass, 2 x 2 x 2 cm, brownish black in color, firm in consistency with tooth attached to the specimen at the cervical area [Figure 1c].
(a) Cellular multinodular proliferation of cells in the form of nests and rosettes. (H and E, x4). (b) Solid areas of cells in the form of whorls interspersed with areas of calcification. (H and E, x10). (c) Duct-like pattern lined by cuboidal cells (H and E, x20), inset showing the characteristic rosette like structure (H and E, x40). (d) Curved rows of cells giving a tubular appearance (H and E, x10)
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F2
Solid areas, duct-like pattern, whorled arrangement of cells, and tubular appearance is evident [Figure 2].
(a) Convoluted structure of tall columnar epithelial cells (H and E, x10). (b) Strands of tumor cells 1 to 2 cell layer thick at the periphery (H and E, x10). (c) Thin anastamosing strands of basloid cells in a plexiform pattern (H and E, x10). Inset showing high power view of the same (H and E, x20). (d) Cellular areas with cribriform configuration (H and E, x10)
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F3
Few cells were also arranged in a plexiform pattern and cribriform areas are also seen [Figure 3].
(a) Lattice work pattern seen closer to the connective tissue capsule (H and E, x10). (b) Dense hemmorhagic areas (H and E, x10). (c) Irregular calcified bodies amidst the tumor cells (H and E, x10). (d) Leisegang pattern of calcification in the form of globular or spheroidal masses (H and E, x10)
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F4
Some amount of calcification, eosinophilic material, and leisegang ring formation was also observed [Figure 4].