Isn't the children hospital near what Phnom free?
There should be a bunch of ngo to save kids too.

I feel for you, the family, and the kid. Honestly its hard to know what to do. Should the focus be on quality of life or quantity? Even if its a low percent is it better to try? You will have to do some soul searching but you also have your own family don't let it totally drain you.
My Uncle had stage 4 cancer and was riddled with it, they told him maybe about 6 months if treatments didn't work and a year or so if he responded well to Chemo. He tried and lived another year and a half but got sicker and sicker from cancer and treatment. At the end he was a skeleton he couldn't talk, or move he didn't always recognize you and he was only in his 50's. He went from a strong man who worked construction to a sliver of himself. If I was in the same position I think I would rather stop treatment and just enjoy what time I had left rather than come to that.
So circling back to you how is the lad is he enjoying life or is he suffering? Maybe contact some NGOs and see what help they can offer and maybe do something like Make a Wish if possible you could probably do a gofundme for that people love that and its worthy cause if he wants something big. Nothing shameful and fulfilling the wish of a child and trying to let him enjoy his life. Try to let him have good life if he overcomes this he will have had a great experience and things that helped him deal with the pain and God forbid if he passes he got some good times and made what he could of it.
Anyway keep us updated if you do a GoFundMe put the link here I can't give a lot but I would donate to that type of cause. I will pray for him and the family. Lots of love!

No words at all OP, save for "rock and hard place". Whatever decision you make with your wife and wider family, it'll be the right one, and that's all that matters. Not for me to give an opinion save for "do what you think is the right thing", given all the variables you have described.

Like other posters, if you choose the GoFundMe route, post a link here, and I will happily contribute the best that I can, and hope that it helps in some small way.

Feel for you and the wider family, man!!! Such a sad story.

If it was me I’d keep helping the child unless it became a danger to myself or my family (I.e can’t afford health insurance or food)

Save him, he has a chance

Jack.R. wrote:Isn't the children hospital near what Phnom free?
There should be a bunch of ngo to save kids too.

The funding for the children’s hospital in Siem Reap has dropped off considerably since Beat Ritcher died and the place is descending into the chaos of a government hospital (which are free).

The discussion at the NGO would probably go like ... 5 year old with multiple tumor debulking surgeries (or multiple episodes of recurrence). Kid needs targeted immunotherapy (designer drugs) and whole body radiation. Cambodia doesn’t have those tests so specimens would have to be sent to Thailand or Korea or Japan (or the US) for typing and sequence analysis. One dose of one immunotherapy drug might cost a million. To (maybe) save one kid. Then they ask how many kids can be saved from Hand-foot-mouth disease, Dengue Fever, or the multitudes of childhood diseases that kill or cripple children in the Kingdom of Wonder for the amount spent on one.

Childhood cancer is something that western countries have the resources to cure (sometimes).

I feel for the OP. It’s really a rock and a hard place.

No more never means no more when you marry an extended family. It means you run out of resources and return to where you came from. Ive seen it time and again.

How about Kantha Bopha hospitals? They are supposed to provide free treatment. Perhaps they could help?

If you do use the GoFundMe, please put the link here. I'm sure many will help.

Khmu Nation wrote: ↑Tue Feb 25, 2020 7:25 am I have considered gofundme and then sending the link to my mates back home but it goes against my personal ethics as I strongly believe in libertarian values and self responsibility. So I don't think I can go cap in hand. But I am considering it.

fair enough for yourself
though the world is extremely unfair and unequal, and there's no shame in calling that out

but this is isn't for you
how is your nephew responsible for their situation?
the very definition of 'society' and 'civilization' is that we care for one another

Its not an easy decision to make, is there no free treatment in this case. I know a little of what you are going though, that is no consolation I know.
I have been taking care of my girlfriend for over 2 years with her having a serious illness and it is at times a big strain, I hoped her family would give a hand now and again, but no way.

Khmu Nation wrote: ↑Tue Feb 25, 2020 7:25 am I have considered gofundme and then sending the link to my mates back home but it goes against my personal ethics as I strongly believe in libertarian values and self responsibility. So I don't think I can go cap in hand. But I am considering it.

Khmu, i really (really) respect your feeling on this.
but as Phnom Poon says
"the very definition of 'society' and 'civilization' is that we care for one another".

Sometimes our set philosophies just do not cut it.
In this case, this is where Libertarianism fall down badly. helping others.
It is no shame nor sin nor anything to ask for help - it is simply humanity and humbleness.

For a bleeding-heart do-gooder like me, the crunch would probably be when the time comes to accept inevitability and realise that no more can be done. My natural inclination would be to be foolish rather than wise.
I feel for you Bro'. Lots of us do.