cOGText: Gynae Oncology Flashcards
The female reproductive system lies within which two areas?
What components are contained within each area?
- Pelvic cavity: ovaries, uterine tubes, uterus and superior part of the vagina
- Perineum: inferior part of the vagina, perineal muscles, Bartholin’s glands, clitoris and labia

levator ani
- The uterus has which three layers?
- It is held in position by a number of strong ligaments, ____ fascia and the muscles of the pelvic floor (e.g. ___ ___).
- It also has a ____ ligament (maintains the uterus in its midline position) and a ____ ligament (is an embryological remnant).
- The uterus is usually positioned how?
- perimetrium, myometrium and endometrium
- endopelvic, lavator ani
- broad, round
- anteverted and anteflexed.
- The fallopian tubes extend on each side of the uterus, within the upper border of the ____ ligament.
- The tube can be divided into which 4 parts?
- The fimbriae open into the ____ cavity.
- The ovaries are almond shaped and are located laterally in the pelvic cavity. ____ is released into the peritoneal cavity to be received by the fimbriae of the uterine tube.
- broad
- isthmus, ampulla, infundibulum, and fimbriae
- peritoneal
- Ovum

- The cervix holds the walls of the vagina apart forming a ____
- The fornix is made up of which 4 parts?
- fornix
- anterior, posterior and two lateral sides
- Most uterine malignancies arise from the _____, the most common being ______.
- Endometrial cancer is the fourth most common malignancy in women in the UK, with 90% diagnoses occurring in what group of women?
- endometrium, adenocarcinomas
- post-menopausal
Uterine neoplasia
- Aetiology unknown but high levels of _____ are considered to increase the risk of developing an endometrial malignancy.
- Factors which may increase oestrogen levels in the body include …?
- T/F: therefore, the incidence of endometrial cancer is higher in women who have used the oral contraceptive pill
- oestrogen
- PCOS, late menopause, nulliparity, obesity, unopposed oestrogen HRT, tamoxifen, carbohydrate intolerance and oestrogen-secreting tumours (granulosa/theca cell ovarian tumours).
- false - is in fact lower
Common presenting symptoms of uterine neoplasia?
- Abnormal uterine bleeding (main symptom of endometrial malignancy)
- Vaginal discharge e.g. blood/watery/purulent (less common)
- Pain (rare in early stage, may indicate metastases)
what sort of ‘Abnormal uterine bleeding’ may indicate endometrial malignancy?
- Postmenopausal bleeding is malignancy until proven otherwise
- Any irregular bleeding in premenopausal women over 40 should be investigated, especially if the patient has risk factors
T/F: Spread of endometrial cancer is usually direct
True - and can involve the myometrium, cervix, fallopian tubes, and local tissue.
What are the 4 main investigations for endometrial cancer? (inc. which is first line)
- Trans vaginal ultrasound (usually first line) - measures endometrial thickness in postmenopausal women: smooth, regular endometrium with a thickness <4mm = endometrial malignancy unlikely
- Endometrial biopsy - sample of tissue collected for histological analysis
- Dilatation and curettage - carried out under GA, often combined with hysteroscopy: the cervix is dilated to allow a curette to scrape the endometrium which can then be sent for histological analysis
- Hysteroscopy - allows visualization of the uterine cavity, enabling biopsy/curettage to be performed
Endometrial hyperplasia
- what ees eet
- Usually diagnosed how?
- It may occur due to persistent _____ stimulation
- Presents with abnormal _____
- Can be simple, complex or ____
- Simple hyperplasia without atypia is usually seen in what groups of women?
- Atypical hyperplasia can progress to endometrial _____
- ______ is a treatment used for hyperplasia in young women
- Due to its delivery of progesterone to the endometrium, which device is often a treatment used in premenopausal women
- In atypical hyperplasia, _____ is recommended
- Increased number of endometrial cells leading to a thick endometrium
- by biopsy: histologically there is an increase in the gland-to-stromal ratio
- oestrogen
- bleeding
- atypical
- anovulatory teenagers and perimenopausal women
- carcinoma
- Progestogens
- the Mirena intrauterine devic
- hysterectomy
Endometrial carcinoma
- Peak incidence ____ years
- Usually what kind?
- Macroscopic appearance?
- Variety of histological appearances - including?
- How does it spread?
6.
- 50-60
- adenocarcinoma
- large uterus, polypoid
- Purely glandular, Areas of squamous differentiation, Papillary, Clear cell pattern
- Usually direct into the myometrium and cervix. Hematogenous or lymphatic spread can occur. Prognosis is related to stage
name the 2 types of endometrial cancer
which is more common?
Type I (Endometrioid) - most common (80%)
Type II (serous, and clear cell)
Endometrial cancer Type I (Endometrioid)
- most common (__%)
- usually diagnosed shortly after ____
- It is _____ dependent
- T/F: is often diagnosed at an early stage
- Precursor lesion?
- Associated with which mutations?
- Microsatellite instability – germline mutation of mismatch repair genes (____ syndrome)
- 80
- the menopause
- oestrogen
- true
- atypical hyperplasia
- PTEN, KRAS, PIK3CA
- Lynch
Endometrial cancer type II (serous, and clear cell)
- Usually observed in YOUNGER/ OLDER women and has a much BETTER/ POORER prognosis
- T/F: it is not associated with unopposed oestrogen
- Associated mutation?
- Precursor lesion?
- Spreads how?
- Histologically serous carcinoma is characterised by a complex ____ and/or _____ architecture with diffuse, marked nuclear pleomorphism
- T/F: usually requires more extensive surgery than Type 1
- older, poorer (as it is more aggressive and develops much more rapidly)
- true
- TP53
- serous endometrial intraepithelial carcinomas
- along fallopian tube mucosa and peritoneal surfaces so may present with extrauterine disease
- papillary, glandular
- true - and adjuvant chemo/radiotherapy is used more frequently
Endometrial sarcoma (rare)
- Arises from endometrial ____
- Risk of metastasis and prognosis?
- ____ is most important prognostic factor
- stroma
- Locally aggressive and metastasizes early. Initial presentation may be as metastasis (lung or ovary). Poor prognosis
- Stage
Carcinosarcoma (<5% of uterine malignancies)
- Mixed tumours with malignant ____ and ____ elements
- Presence of _____ component has the worst prognosis
- Poor outcome
- epithelial and stromal
- rhabdomyosarcomatous
Prognostic factors for endometrial cancer?
- Histological type
- Histological differentiation
- Stage of disease
- Myometrial invasion
- Peritoneal cytology
- Lymph node metastasis
- Adnexal metastasis
T/F: Endometrial cancer often has a good prognosis as it is usually confined to the uterus at presentation
true
which criteria is usually used for staging endometrial carcinoma?
FIGO (International Federation of Gynaecology and Obstetrics)
add a card on how to stage
What kind of imaging will be performed prior to undergoing surgery - why?
Cross sectional imaging (usually MRI) - to investigate lymph nodes and the degree of involvement of local tissues.
Endometrial tmours are graded based on their architecture
- Grade 1 =
- Grade 2 =
- Grade 3 =
- ≤ 5% solid growth
- 6-50% solid growth
- >50% solid growth
Endometrial cancer: treatment
- Mainstay of treatment?
- ______ may be used as an adjuvant to prevent recurrence
- Radiotherapy or high dose ____ can also be used in patients who are not suitable for surgery
- In widespread disease, chemotherapy may be considered
- Surgical: Hysterectomy and bilateral salpingo-oophorectomy (usually laparoscopic). Ocasionally lymphadenectomy.
- Radiotherapy
- progestogens
Endometrial cancer: recurrence
- T/F: Most patients have good prognosis and the cancer will not recur
- Commonest site of recurrence?
- ____ should be considered in isolated vault recurrence if it has not previously been received.
- Otherwise, hormonal therapy (high dose ____ to slow the disease) and chemotherapy should be the treatment of choice.
- true
- The vault of the vagina
- Radiotherapy
- progestogens
Abnormalities of the myometrium
Name 2 smooth muscle tumours that can arise here and describe their presentation
*
- Leiomyoma (fibroid). Common. Menorrhagia and infertility
- Leiomyosarcoma. Rare. Most common uterine sarcoma. Women >50. Symptoms: abnormal vaginal bleeding, palpable pelvic mass and pelvic pain. Poor prognosis (15-25% 5 year survival)
Ovarian neoplasms
- Typical age for ovarian cancer?
- precursor lesions?
- The most common type of primary ovarian tumours?
- Ovariausually older women, peak = 75
- none known
- epithelial tumours (arise from surface epithelium) - 70%
Ovarian cancer
- main risk factor?
- what factors reduce the risk?
- Genetic predisposition in 5-10% of cases. One 1st degree relative diagnosed <50 = a 5% risk to patient. Two 1st degree relatives diagnosed <50, the risk is increased to __%
- HNPCC (Lynch syndrome): Predisposition to which cancers?
- ____ and ____ genes are associated with a 10-50% risk of developing ovarian cancer
- Women with these genes should attend regular screening and may be offered bilateral _____ once their family is complete (note that this operation will not prevent a primary peritoneal carcinoma).
- T/F: endometriosis may increase risk of developing an ovarian malignancy
- The number of times a women ovulates is the main risk factor
- parity, breast feeding and using the COCP (reduces the number of times a women ovulates). NB: The longer the COCP is used, the lower the risk.
- 25
- bowel, endometrial, ovarian + other cancer
- BRCA1 and BRCA2
- oophorectomy
- true
Epithelial ovarian tumours
- can be grouped into which three classes?
- Borderline tumour definition?
- Most common ovarian cancer (50%)?
- Two distinct types of serous tumours (+ precursor lesions)?
- Serous tumours also make up 20% of benign ovarian tumours e.g.?
- benign, borderline, malignant (except serous tumours which are grouped into high grade and low grade).
- does not invade the stroma but does illustrate malignant characteristics. Prognosis is far better compared to malignant tumours, however, late recurrence can occur.
- serous tumours
- High grade serous carcinoma (serous tubal intraepithelial carcinoma (STIC), Low grade serous carcinoma (serous borderline tumour)
- cystadenomas – uniocular cysts filled with serous fluid
Cervical neoplasia
- Screening tool has succesfully reduced incidence and mortality
- The introduction of which vaccine has decreased these numbers even further
the human papilloma virus
- Name the preinvasive phase of squamous cervical cancer.
- Risk factors for CIN/cervical cancer?
- have often had more what compared to women who do not develop the disease?
- HPV __ and HPV __ have been linked with developing the disease.
- These strains of HPV may act by indirectly damaging the action of ___, increasing the risk of CIN/cervical cancer.
- Cervical intraepithelial neoplasia (CIN)
- multiple sexual partners, lack of barrier protection during sex, starting intercourse at a younger age, prolonged use of the COCP in HPV+ women, smoking
- 16 and 18
- p53
- Name the preinvasive phase of endocervical adenocarcinoma.
- Effectiveness of screening compared to squamous
- Adenocarcinoma makes up 5-25% of cervical cancer. Prognosis compared to squamous carcinoma?
- Risk factors?
- Cervical glandular intraepithelial neoplasia (CGIN)
- It is harder to diagnose on a cervical smear, making screening less effective
- worse prognosis
- later onset of sexual activity, smoking, HPV (particularly HPV 18), higher SE class
Cervical cancer: screening
- UK recommends women between the ages of __ - __ to attend smear tests.
- From ____ years a smear test should be attended every 3 years
- and from ____ years it reduces to every 5 years.
- 25-65
- 25-49
- 50-65
- The endocervix is lined by ___ ___ whereas the ectocervix is lined by ___ ___
- Where these two areas meet is termed the ‘___ ___’.
- The position of the ‘transformation zone’ can alter during life in response to what events?.
- If part of the endocervix everts allowing the chemical environment of the proximal vagina to reach the columnar epithelium, transformation of columnar epithelium cells into ___ ___ cells can occur.
- This leave the cells in a less stable state. The ‘transformation zone’ is the area where this metaplasia has occurred, and is where ____ may develop. Therefore, this is the area which is targeted when taking a sample for cytology in a cervical smear.
- columnar epithelium; squamous epithelium
- transformation zone
- pregnancy, menarche and menopause
- squamous epithelium
- CIN
6.
- T/F: CIN is not visible to the naked eye on examination and women will be asymptomatic
- Abnormalities on cervical smear are classified by degree of ____, which is a cytological diagnosis.
- Dyskaryosis is a ____ diagnosis and is grouped into which 3 grades?
- CIN, however, is a ____ diagnosis and is grouped into which three grades?
- Histological grading is based on which three factors?
- Often ____ (indicates HPV infection) is also present.
- The degree of CIN often correlates with the degree of ____
- True - meaning CIN is only detected by cervical screening
- dyskaryosis
- cytological; severe, moderate and low grade
- histological; grade I, II and II
- Delay in maturation/differentiation, nuclear abnormalities and excess mitotic activity.
- koilocytosis
- dyskaryosis
- CIN I definition?
- CIN II?
- CIN III?
- abnormal cells occupying a third of the basal epithelium
- abnormal cells extended to the middle third
- abnormal cells full thickness of epithelium
- Overall around a __% of CIN cases will progress to the next degree classification, __% will show no changes, and __% will regress.
- T/F: cervical smears are also able to detect infection.
- 33, 33, 33
- true
what is the recommended investigation in women who have significant dyskaryosis detected on cervical smear?
Colposcopy
- When will a women be referred for colposcopy following a cervical smear?
- When is the woman returned to routine screening without referral?
- if the dyskaryosis is moderate or severe; if the dyskaryosis is mild but high risk HPV is detected
- mild dyskaryosis, HPV negative
Colposcopy: allows the cervix to be examined in more detail through the use of a speculum and microscope.
- The _____ junction must be visualized.
- Abnormal epithelium contains more ____ and less ____ than normal epithelium, meaning that when ___ ___ is applied they appear white in colour and are easily identifiable.
- squamocolumnar
- protein, glycogen, acetic acid
Treatment of CIN
- There is a __% risk that untreated CIN III will lead to invasive disease over 5-20 years
- High grade CIN (CIN II/III) needs what treatment?
- 30
- usually large loop excision of the transformational zone (LLETZ). Ablation is another treatment option.
How does cervical cancer usually present?
- blood: post-coital/ intermenstrual bleeding, menorrhagia
- pain: pelvic pain
- discharge: offensive vaginal discharge
- Early cases may be asymptomatic
- More advanced cases - backache, leg pain, haematuria, weight loss, anaemia, changes in bowel habit
- 75-95% of cervical cancers originate from what tissue.
- A number of subtypes exist which include … (inc most common)
- squamous
- keratinizing (most common), large cell, non-keratinizing, small cell
- how does cervical cancer spread?
- Invasion past the cervix usually involves which structures?
- The risk of lymph node mets is based on ____ of disease and tumour size.
- Lymphatic spread usually results in metastases to the ____ and ____ nodes.
- spreads to adjacent structures and via the draining lymphatics. Rarely metastasizes through the blood.
- parametrium, upper vagina, pelvic sidewall, bladder and rectum.
- stage
- pelvic, para-aortic