Peripheral Calcifying Epithelial Odontogenic Tumour Mimicking a Gingival Inflammation: A Diagnostic Dilemma

Figure 2

Histopathological features of the peripheral CEOT. (a) A general overview of the lesion, showing the mucosal lining epithelium with areas of ulceration and inflammatory cells infiltration. Proliferation of odontogenic epithelial cells organized in strands, cords, and nests and amyloid-like material (H & E, original magnification: ×25). ((b) and (c)) Strands, cords, and nests of odontogenic epithelial cells dispersed through the amyloid material (H & E, original magnification: ×40 (b), ×100 (c)). (d) Amyloid stained by Congo red showing apple-green birefringence in polarized light (original magnification: ×40).

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