Lymphoid System

Question 1

Cancer invade by contiguity

Answer 1

Grow into

Question 2

Cancer invade by metastasis

Answer 2

Dissemination

Question 3

3 ways metastasis occurs

Answer 3

Direct seeding or serous membranes of body cavities
Lymphogenous spread (Lymphatic Vessels)
Hematogenous spread (Blood Vessels)

Question 4

What is the most common route for the initial dissemination of carcinomas

Answer 4

Lymphogenous

Question 5

How are less common but more aggresssive (sarcoma) cancers spread by metastasis

Answer 5

Hematogenous

Question 6

Metastisis more in veins or arteries

Answer 6

Veins-thinner wall offer less resistance

Question 7

Since metastasis follow venous flow what are the most common sites of secondary sarcomas

Answer 7

Liver and lungs

Question 8

Lymphangitis

Answer 8

Secondary inflammation of lymphatic vessel

Question 9

Lymphadenitis

Answer 9

Secondary inflammation of lymph nodes

Question 10

How may lymphangitis or lymphadentis present

Answer 10

Red streaks in the skin and nodes painful and enlarged

Question 11

Why os lymphangitis, lymphadenitis dangerous

Answer 11

Can lead to sepsis

Question 12

Lymphedema

Answer 12

Localized type of edema, occurs when lymph nodes don’t drain from an area of the body

Question 13

What happens if cancerous lymph nodes are removed from the axilla

Answer 13

Lymphedema of the limb may occur

Question 14

Solid growths may permeate lymphatic vessels and form minute celllular emboli which may what

Answer 14

Break free and pass to regional lymph nodes . Spread!