Mucoepidermoid carcinoma

Mucoepidermoid carcinoma is also called mucoepidermoid tumor, which accounts for 5% -10% of salivary gland tumors. Stewart et al. Called it a mucoepidermoid tumor according to its clinical and histological characteristics, and it is divided into benign and malignant types. The WHO has also used the name of mucoepidermoid tumors, but many scholars later believe that this nomenclature classification is inappropriate, that the tumors are all malignant and should be called mucoepidermoid carcinomas, and according to the level of cancer cell differentiation and biological Behavior, which is divided into low-grade and highly malignant mucoepidermoid carcinoma. The nomenclature and classification of salivary gland tumors revised by WHO in 1990 has adopted this classification method. Although the term "mucoepidermoid" is not entirely appropriate, it basically reflects that the main components of tumors are mucous-like cells and epidermal-like cells. Mucoepidermoid carcinoma originates from epithelial cells of the glandular duct.