Cervix CA Flashcards
cervix
opening to vagina
cervix CA
CA arises on wall of tissue that surrounds cervix –> makes cervix smaller
etiology & risks
- HPV infection
- Hx of STIs
- multiple sexual partners
- smoking
- early age sex
why are multiple sex partners and early age sex a risk for cervix CA
inc risk of picking up virus
patho
- squamous cell origin
- 3 stages of progression
- time of progression depends on indiv, their Hx, etc.
- mets through lymphatic system
3 stages of progression
1) initial dysplasia
2) carcinoma in situ
3) later invasive stage
initial dysplasia stage (1)
- pre-CA lesion
- Dx at this stage –> good prognosis
- change in histology = “warning sign” for CA
carcinoma in situ stage (2)
- epith superficial layer lining cervix
- dev if Tx doesn’t occur during pre-CA stage
later invasive stage (3)
impacts deeper layer
mnfts
- don’t appear until later in disease
- vaginal discharge
- metorrhagia
- more frequent menses
- pelvic/back pain (late)
Dx
- PAP smear
- colposcopy
- HPV vaccine (Gardasil)
PAP smear
- Observe sample of squamous cells from cervix for squamous cell growth (change in histology)
- Positive result –> CIN1, CIN2, CIN3
HPV Vaccine (Gardasil)
- For young girls & boys to prevent cervical CA
- Provides 5 yrs of protection
- Covers 5 problematic strains of HPV
Tx
- curable if in situ (pre-CA)
- excise tumor
- Sx, radiation
- radical hysterectomy
- cryosurgery
- conization
- LEEP (loop electro-surgical excision procedure)
radical hysterectomy
remove uterus, cervix, etc. if more severe
conization
Sx – remove cone-shaped lesion from cervix (less spread to deeper layers)
LEEP (loop electro-surgical excision procedure)
Electro-surgical –> high temp applied w/ loop-like instrument