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To the Editor:—
In the recent literature on deformities of the teeth occuring in congenital syphilis, the tubercle described as present on the lingual surface of the anterior cusp of both first superior molars has figured more or less prominently.This communication is not concerned with the diagnostic import of this anomaly of the teeth, which has not been accepted generally as a sign of congenital syphilis. It is intended to show that the name of Mibelli is being erroneously associated with this sign. Sabouraud, in his "Entretiens Dermatologiques," volume 2 new series, published by Masson et Cie, 1924, page 210, says: "Il existe un signe fréquent, ordinairement unique et qui paraît à lui seul démonstratif de l'hérédo-syphilis. Ce signe est l'existence à la face interne des premières grosses molaires supérieures des deux côtés, d'une protubérance mamillaire (italics mine) plus ou moin développée et saillante, rudiment d'une cuspide supplémentaire." On