[Retrospective analysis in children with vaccination granuloma]

Area of Science:

• Pediatric Dermatology
• Vaccinology
• Immunology

Context:

• Vaccine granulomas are a common adverse event (0.3-1%) following vaccinations and immunotherapies containing aluminum conjugates.
• These reactions manifest as persistent, itchy subcutaneous nodules, primarily affecting infants and young children on the lateral thigh.

Purpose:

• To increase dermatologists' awareness of vaccine granulomas, a common and benign vaccination adverse event.
• To prevent unnecessary invasive diagnostic procedures and reduce confusion among parents and healthcare providers.

Summary:

• A retrospective analysis of 13 children diagnosed with vaccine granulomas between 2019 and 2023 was conducted.
• The study identified diagnostic criteria and management guidelines, noting that aluminum conjugation is a likely trigger, and granulomas typically resolve spontaneously over time.

Impact:

• This research aims to improve the recognition and management of vaccine granulomas, ensuring appropriate care and reassurance for affected children and their families.
• By providing clear diagnostic and management guidelines, the study helps prevent misdiagnosis and unnecessary interventions, ultimately benefiting patient outcomes and healthcare resource allocation.