Female Genital 1 Flashcards

1
Q

What is necessary for the development of most cervical cancer?

A

HPV- high risk HPVs are the single most important factor in cervical oncogenesis

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2
Q

What are the two most high risk HPV types?

A

16 and 18

31,33,45,51

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3
Q

Viral proteins E6 and E7 inactivate what?

A

p53 and Rb respectively

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4
Q

In most cases the viral DNA is maintained separately from the host DNA as an episome, but what happens in cases of malignant transformation?

A

viral DNA is integrated into the host genome

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5
Q

What percent of HPV infections are transient?

A

90%

  • not detectable within a few years
  • women whose infections persist are at greatest risk of developing cervical lesions
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6
Q

What percentage of men and women will be infected with HPV at some time?

A

80%

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7
Q

Is HPV 16 or 18 more common in cervical cancer cases?

A

16

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8
Q

Besides HPV, what are 4 other additional risk factors to cervical carcinoma?

A

smoking
diet
combined oral contraceptives
immunosuppression

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9
Q

T-F cervical cancer is the #1 cause of cancer death in women in the US?

A

False- 14th it was number 1 in 1950

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10
Q

What 2 ways does screening reduce deaths?

A
  1. increasing the detection of invasive cancer at early stages
  2. increasing the detection of pre invasive lesions
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11
Q

age 21-29 women need what PAP protocol? 30-65? >65?

A
  1. pap every 3 yrs
  2. pap and HPV co test every 5 years or pap every 3 years
  3. no testing if adequate prior negative testing
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12
Q

Where do most cervical carcinomas arise?

A

at or near the squamocolumnar junction

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13
Q

What is a key benefit of the liquid-based pap test? do they have a lower or higher false negative/positive rate?

A

can also perform HPV testing on the residual sample

can make multiple slides too
LOWER FALSE NEGATIVE RATE BUT A HIGHER FALSE POSITIVE RATE

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14
Q

Why is regular screeing crucial for paps? what type of cancer is it best at preventing? can they detect pre cancer lesions? what are they not great at preventing?

A
  1. increases sensitivity
  2. cervical squamous carcinoma
  3. yes
  4. adenocarcinomas or any other types of cancers in that area
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15
Q

What type of cell does HPV infect? where are they most accessible?

A
  1. basal cells

2. ssquamocolumnar junction

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16
Q

How do we obtain a histological biopsy of cervix?

A

colposcopy

17
Q

What are we looking for in a pap test?

A

nuclear changes that are surrogate marker for the presence of HPV

18
Q

CINI represents how thick the basal layer ascends? CINII? CINIII?

A
  1. lower third
  2. middle third
  3. upper third/full thickness (severe dysplasia vs. CIS)
19
Q

What are the 4 key diagnosis made from pap tests?

A
  1. NILM (negative for intraepithelial lesion or malignancy)
  2. ASCUS- (atypical squamous cells of undetermined significance)
  3. LSIL
  4. HSIL
20
Q

Where do ASCUS cells fall into the diagram of histological classifications?

A

can fall into any of the diagnoses

therefore, if there is a ASCUS finding then HPV test will be done to look for HPV high risk types

21
Q

What are the hallmark of low-grade SIL? describe them?

A

Koilocytes- which are squamous cells with enlarged nuclei, low N:C ratio, crisp perinuclear clearing (indicative of presence of HPV)

22
Q

What do we see in colposcopy of high grade SIL (HSIL)/CINII

A

More dense acetowhite areas and punctations due to abnormal blood vessels. GETS WORSE AND MORE EXTENSIVE FOR WORSE LESIONS

23
Q

Do we still see koliocytes in CIN3?

A

No

24
Q

In pap of HSIL, are single cells often present?

A

Yes…unlike LSIL and lesser grade lesions

25
Q

What is the management of women with HSIL?

A

immediate loop electrosurgical excision or colposcopy with assessment

26
Q

What is the goal of excisional procedures like the LEEP or cold knife?

A

remove all HPV related lesions with clear margins

27
Q

What is the most common type of cervical carcinoma?

A

squamous cell 75%

adenocarcinoma 15%

28
Q

What are the strict requirements for micro invasive carcinoma?

A

less than 3mm depth and 7mm horizontal extent

29
Q

Most patients with carcinoma of cervix have what symptom? what other symptoms are common?

A
  1. NONE!

2. post-coital bleeding, vaginal bleeding, vaginal discharge

30
Q

What is a strong sign of invasive squamous cell carcinoma?

A

desmoplasia

31
Q

What is difficult about cervical adenocarcinoma?

A

more difficult to sample on pap and also more difficult to interpret for pathologist

32
Q

What do we see histologically in cervical adenocarcinoma in situ?

A

glands with pseudo stratified hyper chromatic nuclei with apoptoses and mitoses

33
Q

What do we see histologically in invasive cervical adenocarcinoma

A

malignant haphazard glands with irregular branching, infiltrating deep into stroma

34
Q

Does invasion occur first in the pelvic soft tissues or the muscle of the bladder or rectum?

A

pelvic soft tissues

35
Q

What stage is confined to the cervix? 5 year survival?

A

I 80-93%

surgery or radiation

36
Q

What stage extends beyond the cervix but not to the pelvic sidewall or lower third of vagina? 5 year survival?

A

II 60%

radiation

37
Q

What stage extends to pelvic sidewall and/or lower third of the vagina? 5 year survival?

A

III 34%

radiation

38
Q

What stage involves extension beyond the true pelvis and may involve bladder or the rectum? 5 year survival?

A

IV 15%

radiation