Which of the following is NOT an outcome of congenital syphilis?

Congenital syphilis is a condition that occurs when the Treponema pallidum bacterium is transmitted from an infected mother to her fetus during pregnancy. Various complications arise from congenital syphilis, and they can significantly affect multiple organ systems in the developing infant.

Perforation of the palate is a well-documented outcome of congenital syphilis, typically occurring as a result of the bone and tissue malformations associated with the infection. Interstitial keratitis is another known complication; it involves inflammation of the cornea, which can lead to vision impairment, commonly associated with congenital syphilis. Nerve deafness is also an established sequela, as the effects of syphilis can damage the auditory pathways or structures in the ear.

Chronic lung disease, however, is not recognized as a typical outcome of congenital syphilis. This condition is more commonly associated with other types of infections or congenital disorders. Thus, while the first three options represent well-known consequences of congenital syphilis, chronic lung disease does not fit within this framework, marking it as the correct answer to the question of which is NOT an outcome of congenital syphilis.