= Solution
\b[Early <congenital syphilis> can affect the skin, mucosa, bones, viscera and nervous system, yet an infected infant may look well at birth.] The symptoms are a variable constellation, not a compulsory sequence seen in every child.
The classical infantile picture includes persistent nasal discharge or “snuffles”, difficulty feeding, poor growth and a rash that can involve the palms and soles. The eruption may be maculopapular or blistering, with desquamation; colour descriptions such as “coppery” are neither universal nor diagnostic alone. Fissures around the mouth and other mucocutaneous lesions may occur. Look also for <hepatosplenomegaly>, <jaundice>, <anaemia>, enlarged <lymph nodes> and evidence of systemic illness.<Congenital syphilis: 2026 case definition by CDC>[Clinical criteria for children younger than two years; rhinitis, rash and systemic features]{ref}
Bone disease is particularly important when interpreting an apparently motionless limb. <Osteochondritis> or <periostitis> can make movement painful, producing <pseudoparalysis>. This is distinct from the loss of motor function discussed under infantile paralysis. The nervous system can also be involved, including <meningitis> or seizures. Severe disease can be associated with prematurity, hydrops, stillbirth or neonatal death, although a living infant with mild signs may present much later.<Congenital Syphilis treatment guidance by CDC>[Neonatal examination, pseudoparalysis, systemic manifestations and evaluation]{ref}
The period term “hereditary syphilis” should not be read as a modern account of Mendelian inheritance. \b[Modern science identifies infection by <Treponema pallidum>, transmitted to the fetus during <pregnancy>, rather than an inherited constitutional taint.] Absence of obvious maternal symptoms does not exclude transmission. Equally, a rash or nasal discharge alone is not enough to prove <syphilis> or justify an allegation about a parent's behaviour.<About Congenital Syphilis by CDC>[Transmission and absence of symptoms at birth]{ref}
Later disease is useful for completing the history, but is not the usual neonatal picture. It can include notched permanent incisors or abnormal molars, a saddle-shaped nose, anterior bowing of the shins, <interstitial keratitis> and <sensorineural hearing loss>. These permanent dental signs cannot be demanded of a young infant before the relevant teeth have developed.<Congenital syphilis: 2026 case definition by CDC>[Clinical criteria in older children, two years and above]{ref}
\b[Modern correction: examine and test in the context of maternal infection and treatment, even when the baby has no symptoms.] Infant and maternal quantitative nontreponemal results, examination, treatment history and selected direct or additional tests guide assessment. Passive maternal <antibodies> complicate interpretation of infant serology; a positive test does not have the same meaning in every setting. Appropriate <penicillin> treatment and follow-up are determined by the clinical scenario, not by waiting for a characteristic rash. Historical mercurial treatment is not its modern substitute.<Congenital Syphilis treatment guidance by CDC>[Interpretation of neonatal tests; scenario-based evaluation, penicillin treatment and follow-up]{ref}
Back to article page
