Lymphoid System Flashcards

1
Q

Cancer invade by contiguity

A

Grow into

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2
Q

Cancer invade by metastasis

A

Dissemination

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3
Q

3 ways metastasis occurs

A

Direct seeding or serous membranes of body cavities
Lymphogenous spread
Hematogenous spread

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4
Q

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

A

Lymphogenous

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5
Q

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

A

Hematogenous

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6
Q

Metastisis more in veins or arteries

A

Veins-thinner wall offer less resistance

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7
Q

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

A

Liver and lungs

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8
Q

Lymphangitis

A

Secondary inflammation of lymphatic vessel

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9
Q

Lymphadenitis

A

Secondary inflammation of lymph nodes

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10
Q

How may lymphangitis or lymphadentis present

A

Red streaks in the skin and nodes painful and enlarged

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11
Q

Why os lymphangitis, lymphadenitis dangerous

A

Can lead to sepsis

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12
Q

Lymphedema

A

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

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13
Q

What happens if cancerous lymph nodes are removed from the axilla

A

Lymphedema of the limb may occur

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14
Q

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

A

Break free and pass to regional lymph nodes . Spread!

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