Cancer

Question 1

What are the two types of cancer cells?

Answer 1

Benign: slow growing, does not recur, localized

Malignant: uncontrolled cell growth, irregular spread.

Question 2

What are the three types of ways cancer can spread?

Answer 2

Transcoelomic: penetrate peritoneal cavities

Lymphatic: lymph nodes through lymph systems

Hematogenous: through blood vessels.

Question 3

What is an invasion?

Answer 3

Break through ECM to BM.

Question 4

What is an intravasation? What is circulation?

Answer 4

Through walls of blood, lymph vessels into vessels itself.

Circulation is through the system to reach destination.

Question 5

What is dissemination?

Answer 5

Distribution of cancer cell over large area or range.

Question 6

What is extravasation?

Answer 6

Movement of cells out of the blood vessels into tissue during inflammation or when metastasized.

Question 7

What is colonization?

Answer 7

Set up aggressive colony invading tissues, forming tumor.

Question 8

What are the steps of cancer cell spread?

Answer 8

Invasion -> Intravasation -> Circulation -> Dissemination -> Extravasation -> Colonization

Question 9

What are the stages of cancer?

Answer 9

Stage 1: small, no spread.

Stage 2: localized spread

Stage 3: regional spread

Stage 4: distant spread throughout blood, lymphatics