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Autoimmune hepatitis type 2 arising in PFAPA syndrome: coincidences or possible correlations?
Claudia Della Corte1, Giusy Ranucci, Maria Tufano
1University Federico II, Department of Pediatrics, Via S Pansini 5, 80131 Naples, Italy.
Insights
Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS) syndrome, a chronic autoinflammatory condition, may be linked to autoimmune hepatitis. This case report suggests immune dysregulation in PFAPA could trigger autoimmune disorders in susceptible children.
Area of Science:
- Immunology
- Pediatrics
- Hepatology
Background:
- PFAPA syndrome is a chronic autoinflammatory disorder in children, marked by recurrent fever, aphthous stomatitis, pharyngitis, and cervical adenitis.
- Its etiology is unknown, but innate immune system dysfunction is implicated.
- The Marshall criteria preclude PFAPA diagnosis in patients with autoimmune diseases.
Observation:
- A case report details an 8-month-old girl diagnosed with PFAPA syndrome.
- At 18 months, this child subsequently developed autoimmune hepatitis type 2.
- This presentation occurred despite the exclusion criteria for PFAPA.
Findings:
- The study hypothesizes that the innate immune dysregulation characteristic of PFAPA may predispose susceptible individuals to autoimmune conditions like autoimmune hepatitis.
- This suggests a potential link between autoinflammatory processes and the development of autoimmune diseases.
Implications:
- This case highlights a potential association between PFAPA syndrome and autoimmune hepatitis, warranting further investigation.
- Understanding the immune dysregulation in PFAPA could offer insights into the pathogenesis of autoimmune disorders.
- Further research is needed to explore the relationship between innate immunity dysfunction and the development of autoimmune conditions in pediatric patients.
Abstract:
PFAPA syndrome is a chronic disease classified in the group of autoinflammatory syndromes characterized by periodic fever, aphthous stomatitis, pharyngitis, and cervical adenitis in young children. The etiology of this disorder is still unknown, but a primary dysfunction of the innate immune system seems to be involved. According to Marshall criteria, it is not possible to diagnose PFAPA in the presence of autoimmune diseases. We present here the case report of an 8-month girl with PFAPA who developed autoimmune hepatitis type 2 at the age of 18 months. We suppose that the dysregulation in innate immunity that is typical of patients with PFAPA could trigger autoimmune disorders such as autoimmune hepatitis in susceptible subjects. The possible relationships between immune-system dysfunction peculiar to this syndrome and autoimmune hepatitis are discussed.
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