Here are some examples of alterations in cell growth.
You can read more detail about muscle atrophy here.
Have you got that going problem? Maybe it's a growing problem. Benign prostate hyperplasia cartoon. Read more about BPH here.
Learn more about metaplasia here.
An example of cervical dysplasia. Keep clicking for more examples of dysplasia.
Here the entire epithelium is dysplastic so you have a full blown neoplasm. The basement membrane is intact however, so the cancer is not yet malignant.