I agree. That is just strange answer. EVERY cancer can go into remission and than one day appear again after couple years or after decades or never ! After one goes through therapy and has no evidence of disease for 7 years, it is usually not only labeled as "remission, but as "cured" in most cases (talking about other cancers). So I do not see any reason why PC would be different. Even some types of chronic blood cancers have periods of remission !