Welcome to HCM.
There are many types of brain tumours. Some are benign while others are malignant. Some can be surgically removed while some cannot be removed.
You have not mentioned on what basis the diagnosis of brain tumour was made and what type of tumour it is.
I suggest you consult an oncologist
, who is the right person to suggest how it should be managed depending upon the type and spread of the tumour.
Wish you all the best.