My dh had a ganglion near his wrist ( 2 times) but it went away both times.
a gal I used to work with had a big ganglion on her knuckle.

the things I have are deeper under the skin and you can't see anything on the surface, I only feel it when I rub along the arm with a light touch.
kind of like little rows of lentils or split peas the length of my forearm.