I saw the above term in a dermatologist's office.
As we know, a mollusk is a clam, and is also slang for vulva, so is molluscum contagiosum fancy new slang for VD?

Molluscum contagiosum is a viral infection of he skin. It can occur anywhere on the body, including the perineal area. It's not that big a deal. Here is a link to some information.