How metastasis occur?

Cancer cells break free and migrate.

These in-transit metastasis are seen both at the time of original presentation or later after primary treatment has been rendered, the latter being a type of recurrence.

There is also a special type of metastasis that can occur regionally with malignant melanoma; it is known as an in-transit metastasis.

All Particles move using their kinetic energy. Diffusion occurs because of difference in concentrations. The higher the concentration gradient the faster the diffusion rate. When diffusion happens it...

in the pacific. because they chose to occur there