Peripheral clear cell variant of calcifying epithelial odontogenic tumor:: Report of a case and immunohistochemical investigation
Peripheral clear cell variant of calcifying epithelial odontogenic tumor:: Report of a case and immunohistochemical investigation
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DOI：
10.1067/moe.2003.63
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发表时间：
2003-02-01
期刊：
影响因子：
--
通讯作者：
de Araújo, VC
中科院分区：
文献类型：
--
作者：
Mesquita, RA;Lotufo, MA;de Araújo, VC
A case of peripheral calcifying epithelial odontogenic tumor, clear cell variant, located on the right gingival maxilla of a 48-year-old woman, presenting as a 2.0-cm solitary, firm nodule was studied. Microscopically, it was composed of polyhedral and clear epithelial cells associated with amyloid-like deposition. The clear epithelial cells exhibited granules that were positive for periodic acid-Schiff, and the amyloid-like deposit stained with Congo red showed a green birefringence in the polarized light. Polyhedral and clear epithelial cells were immunopositive for AE1/AE3 and cytokeratin 14. Immunoexpression of fibronectin and types I and III collagen were different between the amyloid-like deposits and the connective tissue stroma. Tenascin surrounded epithelial cells located inside the amyloid-like deposits. Laminin and type IV collagen were immunodetectable around the strands, cords, and nests of epithelial cells. This report represents the seventh case of peripheral calcifying epithelial odontogenic tumor, clear cell variant.
