How is salivary gland cancer detected?
For a salivary gland tumor, a needle biopsy (see below) is the preferred test for making a diagnosis. A surgical (incisional) biopsy should be avoided in almost every case, except in rare exceptions. Imaging tests may be used to find out whether the cancer has spread.
What percent of parotid tumors are cancerous?
Only about 20% of parotid gland tumors are malignant. Half of submandibular and sublingual tumors, and 20% of the minor salivary gland tumors are benign .
How common is parotid gland tumor?
Malignant salivary gland tumors are relatively rare, making up only 6 percent of head and neck cancers. The most common type of salivary gland tumor (~80% of all salivary gland tumors) is a slow-growing benign tumor in the parotid gland. Minor salivary gland tumors are rare.
Can ultrasound detect parotid tumor?
The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of ultrasound for the diagnosis of parotid gland masses were 38.9%, 90.1%, 29.2%, 93.3% and 85.2%, respectively, and accuracy for malignant masses was 20%.
Does salivary gland cancer spread quickly?
Grade 1 (low-grade) cancers have the best chance of being cured. They grow slowly and don’t look much different than normal cells. Grade 2 cancers grow moderately fast. Grade 3 cancers grow quickly.
Is salivary cancer curable?
Many salivary gland cancers can often be cured, especially if found early. Although curing the cancer is the primary goal of treatment, preserving the function of the nearby nerves, organs, and tissues is also very important.
Should a parotid tumor be removed?
Treatment Surgery is recommended for almost all parotid gland tumors, whether cancerous or benign. Although most tumors grow slowly and are non-cancerous, they will often continue to grow and occasionally can become cancerous. Treatment of a parotid tumor generally requires removing the parotid gland (parotidectomy).
How rare are parotid tumors?
Salivary gland cancers are not very common, making up less than 1% of cancers in the United States. They occur at a rate of about 1 case per 100,000 people per year in the United States. These cancers can occur in people of almost any age, but they become more common as people get older.
Are parotid tumors fatal?
If cancer is located only in the salivary gland, the 5-year survival rate is 95%. If the cancer has spread outside the salivary gland to nearby structures or lymph nodes, the 5-year survival rate is 69%. If it is found after the cancer has spread to distant parts of the body, the 5-year survival rate is 44%.
Can a parotid tumor grow back?
Recurrent parotid tumors unfortunately regrow after initial treatment, requiring further surgery. Repeat surgery increases both the chances of facial paralysis and facial cosmetic deformities.
Does a parotid tumor move?
About 85% of salivary gland tumors occur in the parotid glands, followed by the submandibular and minor salivary glands, and about 1% occur in the sublingual glands. About 75 to 80% are benign, slow-growing, movable, painless, usually solitary nodules beneath normal skin or mucosa.