Lymph node culture

Lymph node culture

Definition

Lymph node culture is a laboratory test performed on a lymph node to identify organisms (bacteria, viruses, and fungus) that cause infection.

Alternative Names

Culture - lymph node

Why the test is performed

The test may be performed if the cause of swollen glands is not known, and infection is suspected.

How the test is performed

A needle aspiration or biopsy of an enlarged lymph node (swollen glands) is obtained. The fluid is placed in culture media and observed for growth in the laboratory. Sometimes special stains are also done.

How to prepare for the test

There is no special preparation necessary.

How the test will feel

The site may be numbed with a local anesthetic before the node is aspirated. There may be some pain when the needle is inserted into the lymph node.

What the risks are

There is a risk of bleeding or infection.

Special considerations

Not applicable.

Normal Values

No growth is normal.

What abnormal results mean

Abnormal results indicate that infectious microorganisms, such as bacteria, viruses, or fungus are present.

Suspicion of atypical mycobacterial infection is an additional condition under which the test may be performed.

Lymphatic system

Lymph node culture

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