If I remove the full gland, can gyno reoccure when on finasteride?

Hey guys, I got my gyno removed last year (he didn't remove it completely because of cosmetic reasons, I didn't knew that). It started slowly coming back even before I got on Finasteride. Now, 9 months later, my gyno (the nipples) grew back big enough, that I start to feel uncomfortable in a t shirt. It all sucks so bad. But besides that the Finasteride gave me back a good amount of hair, so I got that going for me. Now the question: if I let the full gland removed this time, is there still a chance that the gyno will grow back? I hope somebody can help me.