<unk>  (also known as "Salivary gland<unk> ") is a malignant salivary gland tumor that consists of epidermoid and mucin producing cells.<unk> s arise from mucous cells, which is normally involved in the secretion of mucous and the protection of surrounding tissue.<unk>  is the most common malignant salivary gland tumor, and usually occurs in the parotid and submandibular salivary glands.<unk> s may be classified according to location into 2 subtypes: salivary gland confined<unk> s and other organ<unk>  tumors. The majority of these tumors present as parotid gland<unk>  lesions (65%). Development of<unk>  is the result of an abnormal production of mucin by mucus-secreting cells. Genes involved in the pathogenesis of<unk>  include<unk> T1 and MAML2 fusion genes.<unk> s are usually found in middle aged adults between the second and sixth decade of life. Males are slightly more affected with<unk>  than females. The incidence of<unk>  is approximately 2.5 to 3.0 cases per 100,000 individuals a year. If left untreated, progression occurs slow and is then followed by sentinel lymph node metastasis. The treatment choice for<unk>  is surgical removal.
Mucoepidermoid carcinoma
Medulloepithelioma
Epithelioma
Lymphoepithelioma
Basal cell carcinoma
Basal-like carcinoma
Signet ring cell carcinoma
Verrucous carcinoma