Adenitis (patient information)
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Lymphadenitis is an infection of the lymph nodes (also called lymph glands). It is a common complication of certain bacterial infections.
What are the symptoms of (condition)?
- Swollen, tender, or hard lymph nodes
- Red, tender skin over lymph node
Lymph nodes may feel rubbery if an abscess has formed.
Who is at highest risk?
The lymph system is a network of organs, lymph nodes, lymph ducts, and lymph vessels (or channels) that produce and move a fluid called lymph from tissues to the bloodstream. For more information on this part of the body, see lymph system. The lymph glands, or nodes, are small structures that filter the lymph fluid. There are many white blood cells in the lymph nodes to help fight infection. Lymphadenitis occurs when the glands become enlarged by inflammation, usually in response to bacteria, viruses, or fungi. The swollen glands are usually found near the site of an underlying infection, tumor, or inflammation. Lymphadenitis may occur after skin infections or other bacterial infections, particularly those due to streptococcus or staphylococcus. Sometimes it is caused by rare infections such as tuberculosis or cat scratch disease (Bartonella).
When to seek urgent medical care?
Call your health care provider or go to the emergency room if you have symptoms of lymphadenitis.
Diagnosis
The health care provider will perform a physical exam, which includes feeling your lymph nodes and looking for signs of injury or infection around any swollen lymph nodes. A biopsy and culture of the affected area or node may reveal the cause of the inflammation. Blood cultures may reveal spread of infection to the bloodstream.
Treatment options
Diseases with similar symptoms
Where to find medical care for (condition)?
Directions to Hospitals Treating Condition
What to expect (Outlook/Prognosis)?
Possible complications
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