1: Gynaecological Oncology - Cervical Cancer and Screening Flashcards
What is cervical cancer
Neoplasia of the cervix
What age is peak incidence of cervical cancer
25-29
Or, >80
What is the main type of cervical cancer
Squamous cell carcinoma
What is the typical pre-cursor of cervical cancer
Cervical intra-epithelial neoplasia
What are 99% of cervical cancers caused by
HPV
What types of HPV cause cervical cancer
HPV 16, 18 ,31 and 33
What are 5 risk factors for cervical cancer
- HPV
- Long-term smoking
- COCP > 8-years
- Immunosuppression
- STIs
How does cervical cancer present in the early stages
Asymptomatic
What is the most common symptom of cervical cancer
Abnormal bleeding
What defines abnormal bleeding
- Intermenstrual bleed
- Postcoital bleed
- Post-menopausal bleed
How will vaginal discharge present in cervical cancer
Blood stained and malodorous
What are other symptoms of cervical cancer
Lower abdominal pain
Weight loss
Dyspareunia
How does cervical cancer present clinically
- Blood stained discharge
- Abnormal bleeding
- Pelvic pain
- Weight loss
What defines invasive cervical cancer opposed to CIN
Invades through basement membrane
What are the 4 most-commons sites of cervical cancer metastases
Bone
Bowel
Liver
Lung
Explain investigation for cervical cancer in pre-menopausal women
- Vulvovaginal swab for chlamydia
- If positive treat - If negative. colposcopy and biopsy
Explain investigation for cervical cancer in post-menopausal women
Urgent colposcopy and biopsy
What blood tests may be ordered in cervical cancer
FBC
LFT
U+E
What imaging may be ordered in cervical cancer
CT CAP
Pelvic MRI
What system is used to stage cervical cancer
FIGO
What is FIGO stage 0
CIN
What is FIGO stage 1
Cervical cancer within the cervix
What is FIGO stage 2
Cervical cancer beyond the cervix - but not in the lower third of the the vagina or pelvic side-wall
What is FIGO stage 3
Cervical cancer beyond the cervix in the lower third of the vagina or pelvic side wall
What is FIGO stage 3a
Cervical cancer in lower third of the vagina
What is FIGO stage 3b
Cervical cancer in pelvic side wall
What is FIGO stage 4
Cervical cancer extended to other organs
What is FIGO stage 4a
Cervical cancer to bladder or rectum
What is FIGO stage 4b
Cervical cancer to distant organs
What is FIGO stage 1a
Microscopic cervical cancer contained within cervix
How is FIGO stage 1a managed if wanting to preserve fertility
Trachelectomy
What is a trachelectomy
Removal cervix and upper-vagina
How is FIGO stage 1a managed if not wanting to preserve fertility
Laparoscopic hysterectomy with pelvic lymphadenopathy
What is FIGO stage 1b
Macroscopic cervical disease
How is FIGO stage 1b managed
Wetheim’s hysterectomy
What is Wertheim’s hysterectomy also known as
Radical hysterectomy
What is involved in radical hysterectomy
Following removed:
- Uterus
- Vagina
- Parametrial tissue to pelvic side wall
- Lymph nodes
How is FIGO stage 2a managed
Radical hysterectomy
How is FIGO stage 2b managed
Chemotherapy
How is FIGO stage 3 managed
Chemoradiotherapy
How is FIGO stage 4 managed
Pelvic exenteration
What is extenuation
Removal organs pelvic cavity
What is gold-standard stage 1b to 3 and why
Chemotherapy.
Hysterectomy shown to have no benefit
Explain vaccination to prevent HPV
Gardasil is given to 12-13 year-old boys and girls. Second dose repeated 24m afterwards
What are 4 consequences of HPV
- Cervical cancer (99%)
- Anal cancer (80%)
- Vulval or vaginal cancer (50%)
- Mouth and throat cancer (30%)
what is the aim of screening
to identify cervical intraepithelial neoplasia
what age-group is the cervical screening program offered to
24.5-64 years
when are individuals first invited to screening
24
how often are 25-50 year-olds screened
every 3-years
how often are every 50-64 year-olds screened for cervical cancer
every 5-years
when are over 65-years screened for cervical cancer
If:
- Haven’t had screening test since 50-years and request
one
- Previous abnormal cytology result
if an individual is HIV positive, how often are the screened for cervical cancer
Annually
what are 4 contraindications to cervical smear test
- Menstruating
- <12W post-partum
- <12W post-TOP or miscarriage
- Vaginal discharge
what is first-step of cervical smear
Speculum and cervical smear is sent of liquid based cytology (LBC)
how are women classified based on liquid based cytology
Based on dyskaryosis:
- Borderline
- Mild dyskaroysis
- Moderate dyskaryosis
- Sevre dyskaryosis
- Invasive
- Abnormal glandular cells
what happens to women with borderline or mild dyskaryosis
Send for high-risk HPV testing
what happens to women with moderate or severe dyskaryosis
Send for colposcopy
what happens to women with suspected invasion or abnormal glandular cells
Send for colposcopy
if inadequate smear, what should be done
Repeat smear
if a patient has 3 inadequate smears, what should be done
Send for colposcopy
which patient’s are tested for HPV
Patients with borderline or mild dyskaryosis
what is the test for HPV called
High-risk HPV testing
if patients are HR-HPV +ve what is done
Send for colposcopy
if patients are HR-HPV negative what is done
Re-enter screening
which patients are referred to colposcopy
- 3 inadequate smears
- HR-HPV
- > Moderate Dyskaryosis
what is colposcopy used to identify
CIN
what is CIN graded on
Depth of invasion
what is CIN 1
<1/3 thickness cervical wall
what is CIN 2
2/3 thickness cervical wall
what is CIN 3
Full-thickness cervical wall
What is risk CIN 2 and CIN 3
Progress to cervical cancer
What are oncogenic types of cervical cancer
16, 18, 31, 33
What increases risk of HPV
COCP
Multiple sexual partners
Why is long-term COCP use associated with increased risk HPV
Due to decreased condom use
How does management of CIN vary
Depending on grade
What is a low-grade CIN
CIN 1
What is grade-1 CIN
Less than 1/3 thickness of the cervix
How is low-grade CIN managed
Colposcopy every 6-months
What % of those with CIN 2 progress to cervical cancer
2-3
What % with CIN 3 will progress to cervical cancer
20-30
How is high-grade CIN managed
LLETZ (large-loop excision transition zone)
What are 5 complications of LLETZ
Haemorrhage Infection Vaso-vagal Cervical stenosis Risk pre-mature birth on subsequent pregnancies
After LLETZ when are women followed-up
LBC at 6m
If negative, borderline or mild dyskaryosis on follow-up what happens to women
HR-HPV
If HR-HPV negative when is women invited for screening
3-years (independent of age)
If HR-HPV positive on screening, what happens to the women
Colposcopy
What does CGIN stand for
cervical glandular intraepithelial neoplasia
What is CGIN
pre-cancer to endocervix adenocarcinoma
How is CGIN managed
LLETZ
Cone biopsy
Hysterectomy = if family complete
On colposcopy what stain is used to identify malignant cells
5% acetic acid
On colposcopy what stain is used to identify non-malignant cells
Lugol’s iodine
On colposcopy what stain is used to identify malignant cells
5% acetic acid
On colposcopy what stain is used to identify non-malignant cells
Lugol’s iodine