[Lymphadenitis caused by nontuberculous mycobacteriae].

Area of Science:

• Infectious Diseases
• Pediatrics
• Microbiology

Context:

• Increased incidence of lymphadenitis caused by nontuberculous mycobacteria (NTM) in Finland since 2006, following the cessation of universal BCG vaccination.
• Clinical presentation involves a slowly developing unilateral cervicofacial mass in otherwise healthy children.
• Untreated lymphadenitis can lead to suppuration, draining sinus formation, and scarring.

Purpose:

• To describe the epidemiology and clinical course of nontuberculous mycobacteria lymphadenitis in children in Finland.
• To discuss management strategies, including surgical considerations and the role of observation.
• To highlight the need for parental information and support.

Summary:

• Lymphadenitis due to nontuberculous mycobacteria is increasingly diagnosed in Finnish children post-BCG vaccination cessation.
• The condition typically manifests as a neck mass, which may spontaneously resolve or lead to sinus formation and scarring.
• Surgical intervention is curative but often contraindicated due to potential facial nerve damage, favoring observation in select cases.

Impact:

• Informs clinicians about the rising trend and clinical presentation of NTM lymphadenitis in a post-vaccination era.
• Provides guidance on management options, emphasizing observation when surgery poses significant risks.
• Underscores the importance of patient and parental education and support for this condition.