'Road', the passage type cancer structure

 You can observe some geometric cancer structures on host's skin. These are flat and long stretched out endlessly. Cancer structure 'Road' is very similar to 'Blood vassel'. Roads, like blood vessels, function as passage for carrying something.

Cancer structures around the blood vessel

 Cancer cells usually build their structures around blood vessels. It's because they need a lot of blood to maintain their life. But it doesn't mean that cancer cells far away from the blood vessel are going to die. They(cancer cells far away from the blood vessel) can also use blood by their own mechanism.

Luminous cancer structures

 When the source of energy disappears, cancer structures begin to glow themselves.

Beautiful cells on the surface of cancer structure

 Sometimes, cancer cells use normal cells when they make structures. It's to make sure that their cancer structures don't appear stark. In this case, poor normal cells look more beautiful.

Cell 'Tree' on the playground

 It looks like a normal cell. But it's just an artificial structure made of a real cell.