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Neonatal pemphigus foliaceus
D C Walker1, K A Kolar, A A Hebert
1Department of Dermatology, University of Texas Medical School at Houston, USA.
Archives of Dermatology
|November 1, 1995
Summary
Neonatal pemphigus foliaceus is reported for the first time, occurring when fetal antibody levels exceed a threshold. Strict maternal disease control may prevent this rare autoimmune condition in newborns.
Area of Science:
- Dermatology
- Immunology
- Neonatology
Background:
- Pemphigus is a group of autoimmune blistering skin diseases.
- Pemphigus vulgaris is known to affect newborns via placental antibody transfer.
- Neonatal pemphigus foliaceus has not been previously documented despite transplacental antibody passage.
Observation:
- This case presents the first documented instance of neonatal pemphigus foliaceus.
- Clinical presentation and immunofluorescence confirmed the diagnosis in the newborn.
- High indirect immunofluorescence antibody titers were observed in both mother (1:640) and fetus (1:80).
Findings:
- A fetal antibody titer threshold ( > 1:40) may be necessary for neonatal pemphigus foliaceus.
- Elevated maternal antibody titers increase the likelihood of reaching this fetal threshold.
- Successful placental transfer of IgG antibodies can lead to fetal disease.
Implications:
- Strict maternal pemphigus foliaceus control is crucial.
- Lowering maternal antibody titers can reduce placental transfer.
- Improved neonatal outcomes are expected with better maternal disease management.