Carcinoma ex pleomorphic adenoma of the sublingual gland: a case report

Yasunori Ariyoshi; Masashi Shimahara; Toshiyuki Konda; Motomu Tsuji

doi:10.1038/ijos.2012.3

International Journal of Oral Science ›› 2012, Vol. 4 ›› Issue (1) : 50 -53. DOI: 10.1038/ijos.2012.3

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Carcinoma ex pleomorphic adenoma of the sublingual gland: a case report

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Abstract

We report a case of carcinoma ex pleomorphic adenoma of a sublingual gland in a 70-year-old man. Under a clinical diagnosis of benign salivary gland tumor, excision of the mass with the sublingual salivary gland in an en bloc fashion via an intraoral approach was performed. Histopathologically, there was a rupture of the fibrous capsule and diffuse cell-rich sheets composed of myoepithelial cells with round nuclei were also seen. Immunohistochemically, the cells that composed of cell rich sheets were positive to smooth muscle actin. Final diagnosis of myoepithelial carcinoma ex pleomorphic adenoma was made.

Keywords

pleomorphic adenoma / malignant / myoepithelial carcinoma / sublingual gland / magnetic resonance imaging

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Yasunori Ariyoshi, Masashi Shimahara, Toshiyuki Konda, Motomu Tsuji. Carcinoma ex pleomorphic adenoma of the sublingual gland: a case report. International Journal of Oral Science, 2012, 4(1): 50-53 DOI:10.1038/ijos.2012.3

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