Ectomesenchymal chondromyxoid tumor of the anterior aspect of the tongue.
ABSTRACT Ectomesenchymal chondromyxoid tumor of the anterior aspect of the tongue is a benign rare tumor. Thirty cases have been reported so far. It presents as a slowly growing, asymptomatic, submucosal nodule on the anterior dorsum of the tongue. Histopathologically, the tumor is composed of a well-circumscribed, lobular proliferation of fusiform and ovoid cells in a chondromyxoid background. Most consistent immunohistochemical finding is the diffuse and strong immunoreactivity for glial fibrillary acid protein. Histogenetic origin of the tumor is uncertain. We report here a 56-year-old woman with a 0.7-cm tumoral lesion of 5 months' duration on the anterior aspect of her tongue. Total excision was performed and histopathologic findings were consistent with ectomesenchymal chondromyxoid tumor. No recurrence was observed after 2 years of follow-up.
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ABSTRACT: Ectomesenchymal chondromyxoid tumor (ECMT) is a rare tumor, exclusively arising in the anterior tongue. Thirty-eight cases have been reported in the English literature. It usually presents as a sessile protrusion and shows round to spindle cells embedded in myxoid to chondroid stroma. Tumor cells are almost always positive for polyclonal glial fibrillary acidic protein (GFAP). We report our experience in the recent treatment of a case of ECMT, the third case in 3 years. The mass in the anterior tongue revealed characteristic morphologic features of ECMT and the expression of polyclonal GFAP. Although ECMT should be differentiated from other mesenchymal tumors including myoepithelioma, its clinical, morphological, and immunohistochemical features enable its diagnosis, especially when pathologists are aware of it.Korean journal of pathology. 04/2012; 46(2):192-6.
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ABSTRACT: Ectomesenchymal chondromyxoid tumor (ECMT) is a rare benign intraoral tumor. Clinically, it presents as a slow growing, painless, firm, submucosal sweling exclusively occurring on the anterior dorsum of the tongue. Till date only 40 cases have been reported in literature. Histopathologically the tumor is characterized by a well circumscribed, lobular proliferation of round, polygonal, ovoid or fusiform cells in a net-like pattern in a myxoid to chondromyxoid background. Here, we present a rare case of ECMT occurring in a 7-year-old boy and throw some light on this distinct entity.Journal of Oral and Maxillofacial Pathology 01/2011; 15(1):74-9.
- Journal of oral and maxillofacial surgery: official journal of the American Association of Oral and Maxillofacial Surgeons 10/2012; · 1.58 Impact Factor