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Salivary gland biopsy
Definition:
Salivary gland biopsy is a diagnostic procedure in which a small piece of salivary gland is removed for examination. Alternative Names:
Biopsy - salivary gland Text Continues Below
How the test is performed:
There are several pairs of salivary glands in different locations: a major pair in front of the ears (parotid glands); two major pair on the floor of the mouth; and several minor pairs within the lips, cheeks, and tongue.
One method of salivary gland biopsy is a needle biopsy. The skin over the gland is scrubbed. A local anesthetic may be injected, and a needle is inserted into the gland. A small "core" of gland tissue is removed with the needle and sent to the laboratory for analysis.
A biopsy can also be performed when all or part of a salivary gland is removed because of a tumor. An examination of the removed tissue can help to determine the type of tumor. A lip biopsy can also be performed to diagnose diseases like Sjogren's syndrome. How to prepare for the test:
For a needle biopsy, there is no special preparation, although fasting for a few hours may be advised. For surgical excision of a tumor, preparation is like any major surgery, including fasting for 6 to 8 hours. Infants and children: The preparation you can provide for this procedure depends on your child's age, previous experiences, and level of trust. For specific information regarding how you can prepare your child, see the following:
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