Conversation: The conversation between human and AI assistant.
[|Human|] In 2005 I got operation of brain tumor of medaballastoma in left cerebellar.It is  malignant,w.h.o grade iv. and under follow up treatment  I took radiotherapy & chemotherapy. In 2010 it recurred.Ihave gone through the same process. In 2011 december I have suffred from lower spine cancer, for that I took radiothrapy in my lower spine.NOW IN 2012 NOV.2012 Metastates drops came in my servical, for that I am taking only chemotheraphy.I want to ask you about my longivity of lifeand want any final treatment
[|AI|]  Dear, Radotherapy and chemotherapy are only choice for these type of tumors after surgery wherever applicable. A portion of the nervous system which has once been treated by radical Radiotherapy cannot be treated again by Radiotherapy as it can cause more damage. May be smaller supplemental dose of radiation can be tried.  Lifetime is in the hands of nature but as long as there is remission of the disease one is safe. Truly,