What is the term for a lesion associated with syphilis?

The term for a lesion associated with syphilis is "gumma." Gummas are soft, tumor-like growths that typically develop during the late stages of syphilis and are characterized by necrotic tissue along with granulomatous inflammation. They can occur in various organs, including the skin, liver, and bones, and they represent a manifestation of the body's immune response to the syphilis infection.

This aspect of gummas also indicates the chronic nature of the disease at this stage, as they can take years to develop after the initial infection. The distinct characteristics of gummas, including their appearance and the specific clinical context of late-stage syphilis, establish them as a key identifying feature of this sexually transmitted infection.

The other terms do not fit this context: a carbuncle refers to a cluster of boils or infected hair follicles, exudate pertains to fluid that leaks out of blood vessels during inflammation, and repair relates to the process of healing tissue damage. Therefore, gumma appropriately captures the specific pathology associated with syphilis.