label: major salivary gland adenoid cystic carcinoma
label_lc: major salivary gland adenoid cystic carcinoma
description: "An aggressive carcinoma that arises from the major salivary glands. It is characterized by the presence of malignant epithelial and myoepithelial cells forming cribriform, tubular, and solid patterns. It usually presents as a slow growing mass. Patients develop pain because of the tendency of these carcinomas to invade perineural tissues."