No abstract available.
Myoepithelioma* ; Trachea*

Child ; Humans ; Mediastinum ; Myoepithelioma/diagnosis*

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.
Glial Fibrillary Acidic Protein ; Myoepithelioma ; Tongue

Adult ; Female ; Humans ; Maxillary Sinus Neoplasms ; Myoepithelioma

Carcinoma ; diagnosis ; Humans ; Maxillary Sinus ; Myoepithelioma ; diagnosis

Myoepithelioma is an uncommon benign tumor that most likely occurs in the salivary gland. Extra-salivary myoepithelioma are sporadic and rare, especially the quantities occur in the sinonasal cavity are fewer in related literature reported. In this paper, we present a rare case of benign myoepithelioma that occurred in the nasal cavity, and the related process of pathogenesis, diagnosis, treatment and prognosis are discussed.
Humans ; Myoepithelioma ; pathology ; Nasal Cavity ; pathology

Humans ; Carcinoma/pathology* ; Myoepithelioma/pathology* ; Molecular Biology

Adult ; Humans ; Male ; Myoepithelioma ; diagnosis ; Soft Tissue Neoplasms ; diagnosis ; Thigh

Carcinoma ; pathology ; Humans ; Hypopharyngeal Neoplasms ; pathology ; Hypopharynx ; pathology ; Myoepithelioma ; pathology

Ear Canal ; Ear Neoplasms ; diagnosis ; Humans ; Myoepithelioma ; diagnosis