Clin: Pap Smear - Wooton Flashcards
what is the site where more than 90% of cervical neoplasia arise?
squamocolumnar junction (SCJ)
what happens to the SCJ as women age?
it moves up into the cervical canal, becoming protected
how many strains of HPV are associated with cancer?
15
which 4 strains cause the majority of cancer?
- *16, 18**, 31, 45
- 16 and 18 responsible for 70% of cervical cancer
which HPV strains are associated with genital warts and low grade lesions?
6, 11
what are the risk factors for cervical neoplasia?
- multiple sexual partners
- young age at first intercourse
- smoking (3.5x greater risk)
- organ transplant
- DES exposure
- high parity (esp with multiple partners)
what are the screening guidelines for females under 21?
NO screening
what are the screening guidelines for females age 21-29?
pap cytology every 3 years
what are the screening guidelines for females age 30-65?
HPV and cytology every 5 years
what are the screening guidelines for females age 65 and over?
no screening following adequate negative prior screening
what are the screening guidelines for females after hysterectomy?
NO screening
a satisfactory specimen on the 2001 Bethesda system has both what?
endo and ectocervix spacimen
what organisms can be identified using the 2001 Bethesda system?
- trichomonas
- fungal organisms consistent with Candida
- shift in flora suggestive of bacterial vaginosis
- bacteria morphologically consistent with actinomyces
- cellular changes consistent with HSV
what epithelial cell abnormalities can be identified using the 2001 Bethesda system?
atypical squamous cells
- of undermined significance (ASC-US)
- cannot exclude high grade (ASC-H)
low grade squamous intraepithelial lesion (LSIL)
high grade squamous intraepithelial lesion (HSIL)
squamous cell carcinoma
what is the order of cervical changes leading to cervical cancer?
normal -> LSIL -> HSIL -> cervical cancer
what if a woman tests positive for ASC-US, but negative for HPV?
repeat co-testing in 3 years
what if a woman tests positive for ASC-US, and is HPV positive?
needs colpo