From Wikipedia, the free encyclopedia
Salivary gland cancer is a cancer that forms in tissues of a salivary gland.
The salivary glands are classified as major and
minor. The major salivary glands consist of the parotid, submandibular, and sublingual
glands. The minor glands include small mucus-secreting glands
located throughout the palate,
nasal and oral cavity.[1]
Salivary gland cancer is rare, with 2% of head and
neck tumors forming in the salivary glands, the majority in the
parotid.[2].
Classification
Salivary gland neoplasms are classified by the World Health Organization as
primary or secondary, benign or malignant, and by tissue of
origin.[3] This
system defines five broad categories of salivary gland neoplasms,
malignant epithelial tumors (e.g. acinic
cell carcinoma, mucoepidermoid carcinoma and
adenoid cystic carcinoma),
benign epithelial tumors (e.g. pleomorphic
adenoma, myoepithelioma and Warthin tumour),
soft tissue tumors (Hemangioma), hematolymphoid tumors
(e.g. Hodgkin lymphoma), and secondary
tumors.[4]
Signs and
symptoms
The most common symptom
of major salivary gland cancer is a painless lump in the affected
gland, sometimes accompanied by paralysis of the facial nerve.
Causes
Pathenogenesis
Diagnosis
Prevention
Treatment
Surgery
Radiotherapy
Chemotherapy
Prognosis
Epidemiology
History
See also
Notes
References
External
links
This article incorporates public
domain material from the U.S. National Cancer
Institute document "Dictionary of Cancer Terms".