That gives credence to the below sermon I once listened to and really thought deeply about the whole topic of death.

http://nairobichapel.net/death-dying/

Well Survival rates for Lung cancer is very low, even in developed countries.
I guess the problem lies with treatment Kenyans go for in India. Doctors in India continue treatment even when they know very well the patient wont recover.Which is a shame and a waste of resources.
I know in UK, Doctors tell patients how long they got to live. At this stage they actually shift from treatment to pain and end of life management. Just to make you comfortable

True but some other forms simply have like two main stages.

Stage 1 & 4 - because the transition between stages 1 & 4 is quite drastic due to its original attack organ eg liver.

Liver cancer transition quite fast between the 4 stages since liver is a vital organ which receives lots of blood and the blood system is what cancer cells use to migrate/regroup.

Liver is like a hub in this case. Anytime a cancer cell can be transferred to a different part of the body and start at one new cancer colony!

Actually the cancer stages are defined by the size of the tumor and the potential of the cancer cells to be moved from an infected region of the body to unaffected region.

Quite scary I must say.

New pain: in 2013 I lost a childhood buddy to stomach cancer and even posted the same here. Last month I lost a nephew to breastfeeding cancer and the pain and sadness is immense. The boy was 23 and hap lived with the lump on his left breast for a long time until it became painful around Dec 2016. Late Feb is when diagnosis was started and by the time the results were out he didn't survive for a week. My take: diagnosis is key.

Cancer is a deadly disease and when your diagnosis is stage 4, there isn't much medically to be done and this cuts across all cancers because the cancer cells have spread to distant organs. Paliative care/end of life support is recommedned. But further, cancer in the vital organs is more deadly and as someone said, complications from chemo and reduced immunity(Chemo kills cancer cells and normal cells) is really a challenge. I lost a bro to cancer of the gall bladder early this year, he was diagnosed in stage 4 and passed on one month after diagnosis from an infection he picked after insertion of a stent in India. His liver and kidneys wouldn't withstand chemo and then experienced multiple organ failure(blood poisoning) coz the liver wasn't functioning. Oncologists in the country sometimes tell you the truth, like my bro they advised against the India trip, but family decided to try.
Critically early diagnosis is very important, but its not possible in most cancers because cancer can affect any organ of the body.