Mucoepidermoid carcinoma (MEC)[1] is the most common type of minor salivary gland malignancy in adults.

Mucoepidermoid carcinoma can also be found in other organs, such as bronchi, lacrimal sac,[2] and thyroid gland.

[4] Mucoepidermoid carcinomas of the salivary and bronchial glands are characterized by a recurrent t(11;19)(q21;p13) chromosomal translocation resulting in a MECT1-MAML2 fusion gene.

[7] It has also been proposed that mucoepidermoid tumors arise from subepithelial mucous glands of the upper respiratory or digestive tracts.

There has been a report of a case where low dose radiotherapy achieve disease response and control for more than 4 years.