How common is cervical lymphadenitis in children with Nontuberculous Mycobacterial Infection?
Cervical lymphadenitis — swollen lymph nodes in the neck — is the hallmark of nontuberculous mycobacterial (NTM) infection in children. In fact, it is by far the most common form of NTM disease in this age group. A 2024 retrospective study found that 90% of pediatric NTM cases involved cervical lymphadenitis, most often in children between 1 and 2 years old 5. Other forms, such as pulmonary disease or bone infections, are much rarer.
What the research says
A retrospective study of 30 children diagnosed with NTM disease between 2017 and 2024 reported that 27 out of 30 cases (90%) involved cervical lymphadenitis 5. Two of these children also had lung involvement, but the primary site was the neck. The study noted that the median time to diagnosis was 45 days, often because symptoms can be mistaken for other infections 5.
Data from the Czech Republic also highlight the prominence of cervical lymphadenitis. Between 2011 and 2018, 89 children were registered with culture-confirmed NTM cervical lymphadenitis, with an average yearly incidence of 0.53 per 100,000 children — a sharp increase after the discontinuation of routine BCG vaccination in 2010 7. The infection was most commonly caused by Mycobacterium avium complex 7.
Imaging studies confirm that NTM typically presents as a painless neck mass with characteristic findings on CT or MRI, such as low-density ring-enhancing lymph nodes 8. The submandibular and parotid spaces are frequently involved 8. Surgical excision is often needed for diagnosis and treatment 68.
What to ask your doctor
- If my child has a persistent neck lump that does not respond to antibiotics, should we test for NTM infection?
- What is the best way to confirm NTM cervical lymphadenitis — culture, PCR, or biopsy?
- Is surgical removal of the affected lymph node the recommended treatment, or are there other options?
- Could my child's swollen neck node be related to dental problems, or is NTM a more likely cause?
- Are there any long-term complications after treatment for NTM cervical lymphadenitis?
This question is drawn from common patient questions about Infectious Disease and answered using cited medical research. We do not provide individualized advice.