How Tumor development occurs - Chapter 9

Question 1

Genetically Altered Cell:

Answer 1

Stage 1:
Cell with a genetic mutation that increases the tendency to divide when it should generally rest.

Question 2

Hyperplasia:

Answer 2

Stage 2:
Increase the number of cells in a tissue or organ beyond the normal range.

Question 3

Dysplasia:

Answer 3

Stage 3
Abnormal development or growth of cells, tissues, or organs, characterized by changes in size, shape, and organization and often considered precancerous.

Question 4

In Situ Cancer (Carcinoma in Situ - CIS):

Answer 4

Stage 4:
Abnormal cells are confined to their site of origin, not invading nearby tissues. A precancerous condition that has not penetrated the basement membrane.

Question 5

Invasive Cancer:

Answer 5

Stage 5:
Cancer that has penetrated and spread beyond its initial tissue or organ, infiltrating nearby structures and potentially metastasizing to distant parts of the body through blood or lymphatic systems.