Can BCG cause swollen lymph nodes?

BCG lymphadenitis is the most common complication associated with the BCG vaccine; it is characterized by ipsilateral regional lymph node enlargement. BCG lymphadenitis generally undergoes spontaneous regression, but in some cases it becomes larger and suppurative.

What does BCG commonly cause?

Testing for TB in BCG-Vaccinated People Vaccination with BCG may cause a positive reaction to a TB skin test. A positive reaction to a TB skin test may be due to the BCG vaccine itself or due to infection with TB bacteria.

Which disease is caused by BCG?

BCG, or bacille Calmette-Guerin, is a vaccine for tuberculosis (TB) disease. Many foreign-born persons have been BCG-vaccinated. BCG is used in many countries with a high prevalence of TB to prevent childhood tuberculous meningitis and miliary disease.

What are the complications associated with BCG vaccine?

BCG vaccine can cause mild and severe complications. Mild complications include regional lymphadenitis, cutaneous lesions such as hyperemia, swelling, soreness, abscess formation, keloid and blister formation at the injection site, and eczema vaccinatum which are considered as normal vaccine reactions.

What is suppurative lymphadenitis?

Suppurative lymphadenitis is an important and common form of soft tissue infection. Most acute cases of suppurative lymphadenitis are caused by Staphylococcus aureus or by Streptococcus pyogenes.

Can your lymph nodes get infected?

A normal lymph node is small and firm. When lymph nodes become infected, they usually increase in size, become tender, and may be felt in other areas of your body during a physical exam. Infections that spread to lymph nodes are usually caused by bacteria, a virus, or a fungus.

What is the meaning of Bacillus Calmette Guerin?

(buh-SIH-lus KAL-met-gay-RIN) A weakened form of the bacterium Mycobacterium bovis (bacillus Calmette-Guérin) that does not cause disease. Bacillus Calmette-Guérin is used in a solution to stimulate the immune system in the treatment of bladder cancer and as a vaccine to prevent tuberculosis. Also called BCG.

What is BCG lymphadenitis?

BCG lymphadenitis, defined as the development of ipsilateral regional lymph node enlargement after BCG vaccination, is the most common complication resulting from this vaccination. 2–4. In its natural course, BCG lymphadenitis either undergoes spontaneous regression, or enlarges progressively and becomes suppurative.

What are the host-related factors associated with lymphadenitis?

The host related factors include: The age at vaccination. BCG vaccine given during the newborn period is associated with higher risk of lymphadenitis. The immunological responses to the vaccines.

What is the frequency of BCG lymphadenitis?

The BCG lymphadenitis occurs with a frequency that varies very widely depending on several vaccine and host related factors. 1–7,13–15 The vaccine related factors include: The residual virulence of the BCG substrain.

What are the treatment options for BCG lymphadenitis?

Suppurative BCG lymphadenitis may be treated by needle aspiration to hasten resolution and prevent spontaneous perforation and sinus formation. Surgical excision is rarely needed and is meant for cases of failed needle aspiration or for draining BCG nodes.

Is surgical excision recommended for non-suppurative cases of BCG lymphadenitis?

Though surgical excision is likely to be curative and will reduce the healing time, it requires general anaesthesia, 12,16,25 which carries a risk to young children and infants. It is definitively not to be recommended for non-suppurative cases of BCG lymphadenitis. For suppurative cases, needle aspiration is considered a safer option.