Is a pustule related to a wen or a boil or a goiter?

Question:

Is a pustule related to a wen or a boil or a goiter?

I am tracing my boss's family tree for brownie points.

Best Answer - Chosen by Asker: Hey Gaspode The Freak,

a pustule is a little pimple full of pus, so not the same. Your boss sounds like a real pain.