Sorry if I seemed terse narutoguy, I understand what you mean. It touched a nerve as mylate husbands colon cancer went undiagnosed despite his reporting all the main symptoms and ended up in an emergency operation to remove. He too had chemotherapy, but unfortunately due to the late diagnosis, he already had secondaries.
However as Aunty Jem says there is always hope and you cannot compare two different cases, I wish your friend well.
PS Love to Aunty Jem too.
M