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Salivary secretor tumour are rarified and consist of only 3- 5 % of all head and cervix tumors(1).Nearly 80 % of all parotid tumour are benign(2 ) .
What Is The Most Common Parotid Tumor?
The most common parotid gland tumour is pleomorphic adenoma consisting of around 42 % of all the benign tumour of the parotid follow by Warthin ’s tumor , while the most unwashed parotid gland malignant tumor is mucoepidermoid carcinoma represent around 30%(1 ) , ( 2 ) , ( 4 ) .
Pleomorphic adenoma is also known as a benign mixed tumor that is mostly observe in female person with a female person to the male ration of 2:1 and affects individuals of 30 - 60 years of living . Approximately 80 % of pleomorphic adenomas are found in the parotid secretor and mostly , about 80 - 90 % of these are found in the superficial part of the parotid gland . The tumor mickle has keen borders and is multilobulated . Although very rare , it also has a chance of transforming into a malignant eccentric known as carcinoma X pleomorphic adenoma that occurs in 0.15 % of the cases(2 ) .
Mucoepidermoid carcinoma is the most vulgar malignant tumor of the salivary glands that happen in 60 % of the grammatical case in the parotid gland .
This neoplasm arise from both the epidermoid and mucous secretion - secreting cells ; therefore , it has a cystic component also due to its mucin subject .
Clinically , there is a higher luck of misdiagnosis due to its cystic component(2 ) .
How Do You Know If You Have A Parotid Tumor?
Parotid gland tumors are mostly found in females , except for Warthin ’s tumor . These neoplasm occur mostly in the fifth decade of life and are mostly found in the Caucasians . Parotid neoplasm usually presents itself as a painless mass in about 81 % of the subject that are appreciated by accident while washing face or sliver . Pain is see in only 12 % of the cases and facial paralysis in only 7 % of the cases of benign tumors . The facial nerve paralysis is mostly seen due to a malignant parotid tumor ; however , the most common cause of facial nerve paralysis is Bell ’s palsy(5 . )
On interrogation , the parotid volume is ordinarily non - tender , solitary , and firm to tint . Malignant tumour are rock - hard to stir with pelt arrested development , ulcer , and fixing to other social system . Blood and pus may also be appreciated at the opening night of the Stensen duct inside the mouth in malignant tumors . It is important to examine the tegument , unwritten cavity , soft palate , tonsillar fossa , and neck for the right diagnosis and distinction of benignant and malignant mass and further investigation through radiology(4 ) , ( 5 ) .
Parotid Glands
Parotid secretor are a pair of salivary glands come up in the front and beneath the ears . Along with the submandibular and sublingual glands , they shape the major salivary glands . venial salivary glands consist of around 600 - 1000 small gland that develop spit . Parotid glands , in their unstimulated form , produce 10 % of the saliva , but when stimulated they produce about 25 % of the saliva in the sassing . The saliva produced by parotid gland is serious meaning that the saliva is more watery and lean . The parotid gland is made of unlike variety of jail cell due to which it can be smite with various tumors and cancers(3 ) .
Parotid Tumors
The tumors of salivary secreter are rare and calculate for only 3 - 5 % of all the tumors of the head and neck region out of which only 0.5 % are malignant . Parotid glands are the most vernacular website of salivary gland tumors accounting for nearly 60 - 84.2 % of all salivary secreter tumors follow by submandibular glands ( 16 % ) . The tumors of the sublingual glands are very rare but are mostly malignant . Approximately 80 % of all parotid secretory organ tumors are benign with the persist being malignant tumors . As the salivary gland size decreases the propensity for malignity increases with submandibular glands and sublingual glands lie of about 50 % and 90 % malignant neoplasm , respectively(1 ) , ( 2 ) .
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