4. Magnitude of the problem :
Cervical cancer is the 4rd most common cancer worldwide.
Approximately 570 000 cases of cervical cancer and 311 000 deaths from the
disease occurred in 2018
Almost all cervical cancer cases (99%) are linked with high-risk human
papillomaviruses (HPV)
80% of new cases occur in developing countries
About 20 % of cervical cancers are diagnosed in women over
age 65 years.
5. Few women under the age of 20 diagnosed as
cervical cancer .
Cervical cancer is easily accessible to early
diagnosis and treatment which can drastically reduce
the mortality
More importantly to a large extend cervical cancer is
a preventable disease .
6. Pre-invasive lesion CIN
o Definition: Squamous epithelial lesion of cervix which are considered
to be cancer precursors, but lack features of invasive cancer.
o Cervical pre-cancers are diagnosed far more often than invasive
cervical cancer.
o Incidence: Strongly related to younger age of marriage,
socioeconomic factor , risk related behaviors.
o Age: Average age 35yrs.
7. Squamocolumnar junction:
During embryogenesis upward migration of stratified squamous epithelium from the
urogenital and vaginal plate is thought to replace mullerian epithelium this process
end at cervical os.
Squamous metaplasia is a normal process and occurs most actively immediately
adjacent to original scj, creating a zone of metaplastic epithelium termed the
transformation zone (tz) between the original scj and the columnar epithelium.
These metaplastic cells have phagocytic properties and if potential mutagen is present in
the vagina during this early squamous metaplasia transformation to premalignant change may
occur.
8. Age
01.
mean age of cervical cancer
diagnosis is the middle to late
40 .
Race
02.
the incidence is low among
Muslim & Jewish women this
was attributed to male
circumcision
Behavior
03.
infrequent or absent cancer
screening pap test , early
coitarch,multiple sexual
partners, tobacco smoking.
HPV (most common aetiology
for cervical cancer )
04.
subtypes: 16,18, 31,33, most
common associated with
premalignant & cancerous
lesions of cervix
Risk factors
9. Immunosuppression
05.
study suggest that HIV +ve women
have much higher rate of CIN
compared with HIV _ve women.
Parity
07.
Women who have had 3 or more full
term pregnancies have an increased
risk of cervical cancer
Combination oral
contraception
06.
Taking of COCP for long time
Family history
08.
Risk factors
10. Screening for cervical carcinoma = Early
detection of cancer cervix
Investigation for CIN
A- Pap smear :
is the best screening test for
premalignant lesions.
11. The Idea is to study the exfoliated cells shedded From epithelial
Two specimens are obtained with the pap smear.
12. 01. screening and diagnosis of
preinvasive and invasive
lesion & their predisposing
factors.
02. Follow up after treatment of
preinvasive & invasive lesions
03. using DNA analyser it can
predict prognosis .
04. To test radiosensitivity of
invasive tumour
Value of cervico_vaginal smear in
carcinoma of cervix
13.
14. B- Colposcopy : an Outpatient procedure
It’s simple, quick , and well tolerate
It allow examination to lower genital tract with
microscope to further evaluate abnormal pap test
Allow identification and management of
premalignant lesions
Investigation for CIN
16. Investigation for CIN
C - Biopsy :
Biopsy can differentiate CIN I,II,III microinvasive
and invasive cancer .
17. Types of cervical
biopsy :
1- punch biopsy
2- Ring biopsy
3- wedge biopsy
4- four quadrant biopsy
5- cone biopsy
18.
19. Further cytological and colposcopy surveillance:
Post treatment , additional surveillance is required :
patients with excision margins –ve must be followed with cytology testing
alone or with colposcopy each 6 month until 2 –ve evaluation are obtained
before returning to routine screening ,HPV testing done between 6-12 month
post treatment .
If excision margins +ve for CIN II,III surveillance with repeat cytology 4 to 6
month later is preferred.
20. Invasive carcinoma of the cervix
Malignant change in epithelial lining of cervix with
invasion of basement membrane.
Incidence: it is most common form of cancer in women in developing
countries and the second most common form of cancer in women in the
world.
29. vaccinations for girls aged 9–13
years
(or the age range referred to in national
guidelines) before they initiate sexual
activity
Primary prevention
30. Vaccination
1. The quadrivalent HPV vaccine ( 6,11,16,18) (Gardasil)
2. Bivalent HPV vaccine (16,18) (cervarix)
Recommendation :
Administration to all females 8_26 yrs old with target age 11_12 yrs ,efficacy is highest
before the patient immune system has been presented with HPV.
Three doses: initial, then 2month then 6 month later.
The vaccine not recommended for pregnant ,lactating or immunosuppressed women.
31.
32. healthy sexuality education for
boys and girls
essential messages should include delay of
sexual initiation, and reduction of high-
risk sexual behaviors
Primary prevention
33. Avoidance of early marriage
and pregnancy
Follow healthy dietary pattern
Avoid smoking
Improve menstrual hygiene
Don’t forget your smear test
34. condom promotion or provision
for those who are sexually active
male circumcision where
relevant and appropriate.
Primary prevention
35. Secondary prevention
screening for all women aged 30–49 years (or ages determined by national standards)
to identify precancerous lesions, which are usually asymptomatic
The public health goal is to decrease the incidence and prevalence of cervical
cancer and the associated mortality, by intercepting the progress from pre-
cancer to invasive cancer.
Even for women who have received an HPV vaccination, it is important to continue
screening and treatment when they reach the target age.
treatment of identified precancerous lesions before they progress to invasive cancer
36. Tertiary prevention
Treatment of invasive cervical cancer is the goal
of public health to decrease the number of deaths
due to cervical cancer.
Interventions include :- accurate and timely
cancer diagnosis, by exploring the extent of
invasion