lung removal or chemo/radiotherapy ?

HI, I have lung cancer (spanning 2 lobes) and at the moment seem to have 2 options.

pneumonectomy (lung removal)  or chemo and radiotherapy

the lung removal would probably remove the cancer altogether (but as with Aldi middle aisle, once it gone, its gone)

chemo and radiotherapy MAY reduce the cancer but will probably not remove it.

there are no guarantees with either option, but i need to decide ???