How are malignant tumors different from benign tumors?

Question

Quizplus · Accepted Answer

Over time, malignant cells express fewer and fewer functions of the parental cells, whereas benign tumor cells retain parental cell functions. All cells must have plasma membranes for the life of the cell. Benign tumors grow by expansion, and malignant tumors are invasive. Although benign tumor cells retain many normal features and characteristics, they are not totally normal, or they would not form a tumor. The mere existence of benign tumor cells indicates that the strict regulation of growth has been overcome to some degree.

How Are Malignant Tumors Different from Benign Tumors