Kidney. Kidney. Kidney.

The team from Taiwan was a little bit more ambitious.

If this research is successful, it may then reduce the need to research and sacrifice human embryos.

Where is she?

What's the matter with her?

Tom's kidneys and liver are in bad shape.

Your brain and your mitochondria need sulfur.

I have kidney trouble.

Are those cells happy or not?

You know all about imaging, right, ultrasound imaging.

Very quickly they told me,

We can light up tumors

It was really something.

Though the kidneys appear normal.

And at that time, stem cell research had gained momentum, following the isolation of the world's first human embryonic stem cells in the 1990s.

We then are able to actually image those, do 360 degree rotation to analyze the kidney in its full volumetric characteristics, and we then are able to actually take this information and then scan this in a printing computerized form.

doctor, we have renal failure. we should have shut his kidneys down when he first came in. the power drain is too much. we're losing systolic pressure. what does that mean? anita, michael, wait outside. wilson, i think i have a right to be here, and i'd like to kn... outside now.

This is an extremely new field.

You can actually see that kidney as it was printed earlier today.

Doctor Any complains?

Well, not the one we tagged!

And their diagnosis was this

She's had this kidney thing since she was real young.

But if we look on other parts of our bodies where we don't directly interact with the environment our kidneys, our livers, our hearts there is no way to say, by just looking at these organs, where in the world they would come from.

It's not something I was very happy about.

Tracey Gamley stepped up to give me the impossible kidney that I was never supposed to have.

I'm afraid your daughter shows signs of renal failure.

That's actually the actual printer right now, and that's been printing this kidney structure that you see here.

I'd probably be dead if I still had a kidney there.

Did you know rats that ate genetically engineered corn had developed signs of liver and kidney toxicity?

Possible kidney or bladder irritation. You may wind up with increased bruising and bleeding.

His blood pressure's down. His kidneys are failing.

Are you gonna steal my kidney and sell it?

What you die of is increasing organ failure, with your respiratory, cardiac, renal, whatever organs packing up.

But we are able to actually reproduce the functionality of the liver structure, experimentally.

like this kidney tumor, so that you can exactly see where the boundary is between the kidney tumor and the kidney you want to leave behind, or the liver tumor and the liver you want to leave behind.

And up will come mangroves, and sea turtles and your own kidneys.

So, we stack these wafers together, using the kidney cells.

So one of the pioneers, for example, is Dr. Anthony Atala, and he has been working on layering cells to create body parts bladders, valves, kidneys.

And what does happen with that eventually is pneumonia sets in and liver, kidney, brain damage.

I was troubled that the retrieval of organs from executed prisoners was at least as morally controversial as the harvesting of stem cells from human embryos.

This is much sharper than an ultrasound would be.

He glared at us like we'd asked for both his kidneys

Well, there are other cancer tumors in the abdomen quite lethal, very lethal actually pancreas, liver, kidney.