@cheryld Thanks a lot for your concern.
Yea actually the report after the tongue operation was negative therefore we can say that operation was successful but after that operation the doctor took a long time without chemo or radiation which in turn became dangerous as nodes developed and then after MND report came positive and then chemo started after one month. So its a long time gap maybe that is the main reason to develop again in tongue. We left that surgeon and now the treatment is under other radiotherapist.