question: HI DOCTOR, MY DAD IS HAVING A MOUTH CANCER.HIS CASE IS AS FOLLOWS: DATE      DETAILS November-04     first time i was diagnosed for mouth cancer  December-04     I  underwent a surgery July-08     recurrence of mouth cancer August-08     I  underwent 2nd surgery March-10     recurrence of mouth cancer april 2010 to march 2010      I  was on chemotherapy April-11     had bleeding from my mouth so chemotherapy was discontinued 19 may to 2 june      had taken 10 sessions of radiotherapy July-11     doctors are suggesting to under go surgery 3rd time   I am attaching CT scan + MRI reports of below dates.  1)     CT scan report on 10 September 2010 2)     CT scan report on  19 may 2011 3)     CT scan report on  13 july 2011 4)     MRI report on 27 july 2011.