Late, or tardive, congenital syphilis refers to cases of untreated congenital syphilis of more than 2 years' duration. classic manifestations include the Hutchinson triad: notched central incisors, interstitial keratitis with blindness, and deafness from eighth cranial nerve injury. Other changes include a so-called saber shin deformity caused by chronic inflammation of the periosteum of the tibia, deformed molar teeth ("mulberry molars"), chronic meningitis, chorioretinitis, and gummas of the nasal bone and cartilage with a resultant "saddle nose" deformity