how can we rephrase the following text in bold. Thank you.
The development of a primary solid tumour begins with a single normal cell becoming transformed as a result of mutations in certain key genes. This transformed cell differs from a normal one in its escape from the body's homeostatic mechanisms, leading to inappropriate proliferation
and a tendency to override apoptosis. An individual tumour cell has
the potential, over successive divisions, to develop into a cluster
of tumour cells. Further growth and proliferation leads to the development
of an avascular tumour consisting of approximately 1000000 cells
which feed on oxygen and other nutrients present in the local environment.
I'm not sure why it needs rephrasing- it reads fine. What do you want to do with the text?