Thanks guys...
The full story with my wife was:
Approximately 2yrs ago she was diagnosed with bowel cancer (complication resulting from Crohn's disease) and at the same time benign lesions were noted in the lymph nodes around the breasts.
She underwent biological treatment for the bowel cancer, which thankfully cured her of the bowel cancer as it was caught early. (no chemo required during this treatment). The benign lesions during the treatment did not grow, and as a result the docs decided to leave them alone. (biospy or attempted removal of these types of lesions have been known to trigger a benign growth to turn malignant).
Since then, she's had monthly blood screens and ultrasounds on the lesions monitoring for any growth in them. Two weeks ago, the last test showed the lesions had grown/spread/new ones cropped up, and thus has commenced treatment.
The bad news, that even with chemo/biological treatment/hormone therapy, she won't ever be cured, as it's spread and progressed too far. (essentially non-operable, so removing the growths surgically and chemical based treatment won't do squat).
The good news, without treatment, the expectant life span was still measured in 4-5years based on the current measured growth rate, and with treatment, historical evidence that with continued chemo/biological treatment/hormone therapy, she has a current life expectancy of 10-15 years. (biological treatment and hormone therapy will continue for the whole time, but chemo will be done for 3 months in every 12 months). Because of her current life expectancy, she's only considered stage 4 (chronic disease) and not stage 5 (terminal, immiment death) according to the Australian medical books.
In many respects, I'm still trying to come to terms with it, the hardest bit being the time frames involved. In the past, when we've heard of someone with a terminal disease they have weeks/months to live, but in this case we're measuring in 5+ years. At the moment things at home haven't changed a great deal, but knowing a clock is ticking it's a little surreal, knowing it's going to happen but there is no real rush in preparing yourself for it. We haven't gone into too much detail with the kids (Isaac is 6 and Gabriel is 4), they just know mum is going for treatments at the hospital. At this stage we're just trying to keep things normal around the house, which for the most part they will be...