Had the same changes occur with ADT treatment for 12 months. Urologist had not forewarned or advised me re the shrinkage, using a pump, or anything else. I learned it all from a local support group and this site. By that time the damage had been done. Am trying to rectify the situation, and so far the testicles seems to be getting back to normal, but not the penis. I will continue to use a pump religiously and hope for the best.
Good thoughts for all!