Mucoepidermoid carcinoma arises form

Mucoepidermoid carcinomas are composed of variable mixtures of squamous cells, mucus-secreting cells, and intermediate cells. "The low-grade mucoepidermoid carcinoma is composed of largely mucin-secreting cells, whereas in high-grade tumors, the epidermoid cells predominate." They are the most common malignant tumors of the salivary glands. Treatment The primary t/t of all salivary malignancy is surgical excision: for parotid malignancies- Superficial parotidectomy with preservation of CN VII. Total parotidectomy with nerve preservation if deep lobe is involved. for other salivary gland - Enbloc removal of the involved gland Neck dissection for lymph nodes is done clinically palpable nodes for high grade malignancies Radiation therapy is used postoperatively for specific indications high grade histology presence of extraglandular disease perineural invasion direct invasion of regional structureregional metastasis