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Clinical Medicine II Exam 3 GI > Colon Polyps > Flashcards

Colon Polyps Flashcards

1
Q

Focus will be on what types of polyps?

A

Nonfamilial hyperplastic and adenomatous polyps

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2
Q

What is a polyp?

A

Small clump of cells that form in lining of the colon (may be stalk like)

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3
Q

Are colon polyps common?

A

Yes, prevalence of 30% in adults 50+ y/o

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4
Q

Incidence of colon polyps in men vs women?

A

Men have slightly greater risk

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5
Q

Increased incidence of colon polyps in what nations?

A

Industrialized nations

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6
Q

Risk factors for developing colon polyps?

A

High fat diet, diet high in red meat, low fiber diet, cigarette smoking, obesity, genetics

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7
Q

What are hyperplastic polyps?

A

Small polyps located in rectum or sigmoid colon

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8
Q

Malignancy potential of hyperplastic polyps?

A

None

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9
Q

Size of hyperplastic polyps?

A

Usually less than 5mm (small)

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10
Q

2/3 polyps are what type?

A

Adenomatous

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11
Q

Malignancy potential of adenomatous polyps?

A

Some potential, most will have some degree of dysplasia

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12
Q

The larger the adenomatous polyp (>1cm), the higher risk for what?

A

Cancer

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13
Q

Can you distinguish between hyperplastic and adenomatous polyps?

A

No, need a biopsy

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14
Q

Are polyps usually symptomatic?

A

No

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15
Q

If polyps are large they may ulcerate and cause what?

A

Hematochezia (passage of fresh blood from anus)

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16
Q

Very large polyps may cause what?

A

Obstruction

17
Q

When are polyps usually found?

A

Routine colonoscopy or eval for positive FOBT

18
Q

What procedure is the best way to visualize and remove any suspicious polyp lesions?

A

Colonoscopy

19
Q

What is the term for removal of a polyp via colonoscopy?

A

Polypectomy

20
Q

Risks of polypectomy?

A

Perforation and bleeding

21
Q

Surveillance of colon polyps depends on what?

A

Number, size, location, biopsy result of polyps from initial colonoscopy

22
Q

A flat polyp is also known as what?

A

Sessile polyp

23
Q

What is a pedunculated polyp?

A

A polyp attached to the body by a peduncle

Clinical Medicine II Exam 3 GI (14 decks)

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