Tuberculous lymphadenitis
(Redirected from Collar stud abscess)
A form of tuberculosis affecting the lymph nodes
Tuberculous lymphadenitis, also known as tubercular adenitis, is a form of tuberculosis that affects the lymph nodes. It is the most common form of extrapulmonary tuberculosis.
Signs and symptoms[edit | edit source]
The primary symptom of tuberculous lymphadenitis is the swelling of the lymph nodes, particularly in the neck region, known as cervical lymphadenopathy. The affected lymph nodes may become matted and can form a sinus tract, leading to the discharge of pus. Other symptoms may include fever, night sweats, weight loss, and fatigue.
Causes[edit | edit source]
Tuberculous lymphadenitis is caused by the bacterium Mycobacterium tuberculosis. The infection typically spreads from a primary site, such as the lungs, to the lymph nodes through the lymphatic system or bloodstream.
Diagnosis[edit | edit source]
Diagnosis of tuberculous lymphadenitis involves a combination of clinical evaluation, imaging studies, and laboratory tests. Fine needle aspiration or excisional biopsy of the lymph node may be performed to obtain samples for histopathology and culture. Polymerase chain reaction (PCR) tests can also be used to detect the presence of M. tuberculosis DNA.
Treatment[edit | edit source]
The treatment of tuberculous lymphadenitis involves a course of antitubercular therapy (ATT), which typically includes a combination of drugs such as isoniazid, rifampicin, ethambutol, and pyrazinamide. The duration of treatment is usually six months, but it may be extended in certain cases.
Prognosis[edit | edit source]
With appropriate treatment, the prognosis for tuberculous lymphadenitis is generally good. However, untreated or inadequately treated cases can lead to complications such as the formation of abscesses or sinus tracts.
Epidemiology[edit | edit source]
Tuberculous lymphadenitis is more prevalent in regions with high rates of tuberculosis, such as parts of Africa, Asia, and Latin America. It is also more common in individuals with HIV/AIDS due to their compromised immune systems.
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References[edit | edit source]
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