Re: What's an exophytic nodule ?
"Exophytic" means "growing outward" from the surface of an organ or other body structure... as opposed to growing into the tissue, presumably. Despite being such a scary looking word, it really doesn't have a lot of significance by itself. Like Kathy says, I thought all nodules grew that way too.
More than 95% of nodules are not cancer... so try not to worry too much until you know something more certain.