Is the tumour a product of redifferentiation?

Tumours:

1. Tumours are the result of dedifferentiation.
2. Tumour is formed when a differentiated cell regains the capacity to divide and shows unrestrained growth.
3. Tumours, also known as tumour cells, are the result of uncontrolled and abnormal cell growth in an organ, skin, or membrane.
4. In the beginning, the cells were fully functional and normal.
5. The normal cell division process becomes abnormally accelerated due to changes in the genetic material, resulting in uncontrollable cell division.
6. This uncontrolled cell division causes swelling in the tissue, resulting in a tumour.