Paeds Cases · fetal-neonatal-and-perinatal
Congenital and perinatally acquired infections: Case
Clinical case of congenital syphilis in an infant of a mother with late antenatal presentation, covering recognition, investigation, treatment, public-health management, and surveillance.
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Target exams
This infant has the classic presentation of early congenital syphilis. Blood-tinged nasal discharge (snuffles), a maculopapular rash on the palms and soles, and hepatosplenomegaly form a pathognomonic triad, and the maternal history is the key: a reactive syphilis serology at 34 weeks treated with only a single dose of benzathine penicillin two days before delivery is inadequate to prevent congenital infection, because effective prevention requires treatment completed at least 30 days before delivery. Congenital syphilis is entirely preventable, and this case represents a failure of antenatal access and treatment timing. [1]
Clinical findings
The clinical findings reflect widespread spirochaetal dissemination. The nasal discharge is highly infectious. The rash, particularly on the palms and soles, and the hepatosplenomegaly with associated hepatitis and often conjugated hyperbilirubinaemia are typical. Additional findings may include generalized lymphadenopathy, pseudoparalysis of Parrot from painful periostitis and osteochondritis, a Wimberger sign (metaphyseal destruction of the medial proximal tibia), thrombocytopenia, and an anaemia. Long-bone radiographs characteristically show periostitis and osteochondritis. [2]
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References3Show ledgerHide ledger
- [1]Gilmour LS Congenital syphilis: a review of global epidemiology. Clin Microbiol Rev, 2023.PMID 36920205
- [2]Moodley A The term newborn: congenital infections. Clin Perinatol, 2021.PMID 34353577
- [3]Fan L Cost-effectiveness of active-passive prophylaxis and antiviral prophylaxis during pregnancy to prevent perinatal hepatitis B virus infection. Hepatology, 2016.PMID 26509655