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Prognosis is good for acinic cell carcinoma of the parotid gland, with five-year survival rates approaching 90%, and 20-year survival exceeding 50%. Patients with acinic cell carcinomas with high grade transformation (sometimes also called dedifferentiation ) have significantly worse survival.
Each parotid gland is located high in the neck just below the ears. [1] A salivary duct by which saliva is secreted (produced and released), runs through the inside of each cheek from each gland. Furthermore, the extratemporal (outside temporal bone) facial nerve and its subsidiaries run through the parotid gland and innervate (supply nerves to ...
The salivary glands are classified as major or minor. The major salivary glands consist of the parotid, submandibular, and sublingual glands. The minor salivary glands consist of 800 to 1000 small mucus-secreting glands located throughout the lining of the oral cavity. [1] People with these types of tumours may be asymptomatic.
Carcinoma ex pleomorphic adenoma (ca ex PA) is a type of cancer typically found in the parotid gland. It arises from the benign tumour pleomorphic adenoma. Its prognosis depends on the stage. Early tumours have essentially a benign behaviour. [1]
Relative incidence of parotid tumors, with Warthin's tumor near top right. [4] The gland most likely affected is the parotid gland. In fact, it is the only tumor virtually restricted to the parotid gland. Warthin's tumor is the second most common benign parotid tumor after pleomorphic adenoma, but its prevalence is steadily increasing. [5]
Pleomorphic adenoma (or benign mixed tumor) is a common benign salivary gland neoplasm characterised by neoplastic proliferation of epithelial (ductal) cells along with myoepithelial components, having a malignant potentiality. It is the most common type of salivary gland tumor and the most common tumor of the parotid gland.
Adenoid cystic carcinoma is a rare type of cancer that can exist in many different body sites. This tumor most often occurs in the salivary glands, but it can also be found in many anatomic sites, including the breast, [1] [2] lacrimal gland, lung, brain, Bartholin gland, trachea, and the paranasal sinuses.
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips (oral cancer), voice box (), throat (nasopharyngeal, oropharyngeal, [1] hypopharyngeal), salivary glands, nose and sinuses.