Post-Menopausal Health Flashcards
Where do the majority of the arteries supplying the lateral pelvic wall arise from?
Internal iliac artery
Where do the gonadal arteries arise?
L2 abdominal aorta
Where does the superior rectal artery arise?
Continuation of inferior mesenteric
What is the medial umbilical ligament?
Remnant of the umbilical artery
What does the lateral umbilical fold contain?
Inferior epigastric vessels
What is the median umbilical ligament?
Remnant of the urachus
What does the internal pudendal artery terminate as in males?
Dorsal artery
Deep artery of penis
What arteries branch off from the pudendal artery in the male perineum?
Perineal
Posterior scrotal
Where does the anterior scrotal artery arise from?
Common iliac
Where do most of the veins draining the lateral pelvic wall drain to?
Internal iliac vein
Veins of the lateral pelvic wall that drain via the superior rectal vein empty where?
Hepatic portal system
Veins of the lateral pelvic wall that drain via the lateral scrotal vein empty where?
Internal vertebral venous plexuses
Why is the left ureter more likely to be damaged than the right?
Right is constant and usually crosses external iliac
Left is more medial and crosses common iliac
Where does lymph from the superficial pelvic viscera drain to?
External iliac nodes:
- Common iliac
- Aortic
- Thoracic duct
- Venous system
Where does lymph from the inferior pelvis viscera drain to?
Deep perineum:
- Internal iliac nodes
- Common iliac
- Aortic
- Thoracic duct
- Venous system
Where does lymph from the superficial perineum drain to?
Superficial inguinal nodes
What is the average age of menopause?
51 years
When is early menopause defined?
<45 years
When is premature menopause defined?
<40 years
When is late menopause defined?
> 54 years
What results in raised FSH and LH?
Stopping: - COC - Depot Breastfeeding SSRIs
How long does a typical hot flush in menopause last?
3-5 minutes
How long do hot flushes persist for?
2yrs usually
How can menorrhagia in menopause be treated?
Mefanamic or Tranexamic acid Progesterones IUS Endometrial ablation Hysterectomy
What protective features does HRT have?
Reduces osteoporotic fractures
Reduces bowel cancer
?Alzheimer’s and Parkinson’s protection
What are the risks of HRT?
VTE
CVA
Breast cancer
Gallbladder disease
When do endometrial polyps tend to occur in relation to menopause?
Around/After menopause
What may be a possible cause of endometrial hyperplasia?
Persistent oestrogen stimulation
What is the distribution of the three kinds of endometrial hyperplasia?
Simple: - General Complex: - Focal Atypical: - Focal
What are the components of the three kinds of endometrial hyperplasia?
Simple: - Glands and stroma Complex: - Glands Atypical: - Glands
What is the appearance of the glands in the three kinds of endometrial hyperplasia?
Simple: - Dilated Complex: - Crowded Atypical: - Crowded
What is the cytology of the three kinds of endometrial hyperplasia?
Simple: - Normal Complex: - Normal Atypical: - Atypical
When is the peak incidence for endometrial cancer?
50-60 years
What should be considered if endometrial cancer presents in a younger patient?
PCOS
Lynch Syndrome
What is the usual precursor of endometrial carcinoma?
Atypical hyperplasia
What is the usual precursor of an endometrial serous carcinoma?
Serous intraepithelial
How does endometrial carcinoma generally present?
Abnormal bleeding
How does an endometrial cancer appear macroscopically?
Large uterus
Polypoid
How does an endometrial cancer appear microscopically?
Most are adenocarcinomas
Most are well differentiated
How can endometrial cancers spread?
Directly into: - Myometrium - Cervix Lymphatic Haematogenous
What are Type 1 endometrial carcinomas?
Endometroid (and mucinous)
What are Type 1 endometrial carcinomas related to and associated with?
Related to unopposed oestrogen
Associated with atypical hyperplasia
What percentage of endometrial carcinomas are type 1?
80%
What are Type 2 endometrial carcinomas?
Serous (and clear cell)
What are Type 2 endometrial carcinomas related to and associated with?
Not oestrogen associated
Associated with elderly postmenopausal women
TP53 often mutated
What mutations may be seen in Type 1 endometrial carcinomas?
PTEN
KRAS
PIK3CA
How is obesity linked to an increased risk of endometrial cancer?
Endocrine and inflammatory effects of adipose tissue
What do adipocytes contain that results in endometrial proliferation?
Aromatase:
- Converts ovarian androgens to oestrogens
How does obesity affect sex hormone binding globulins and what effect does this have?
Reduced levels:
- Increased levels of unbound, biologically active hormones
How does obesity affect insulin binding globulin levels and what effect does this have?
Reduced levels:
- Increased free insulin levels
- Proliferative effect on endometrium
What cancers does Lynch Syndrome predispose to?
Colorectal cancer
Endometrial cancer
Ovarian cancer
How is Lynch Syndrome inherited?
Autosomal dominant
How can Lynch Syndrome tumours be identified?
Immunohistochemistry staining
What is the instability found in Lynch Syndrome called?
Microsatellite instability
What are the precursor lesions to Type 2 endometrial tumours?
Serous endometrial intraepithelial carcinoma
How do Type 2 endometrial tumours spread?
Fallopian tube mucosa
Peritoneal surfaces
What endometrial tumours are more aggressive - Type 1 or Type 2?
Type 2
What is the structures of a serous endometrial carcinoma?
Complex papillary +/or glandular structure
Diffuse, marked nuclear polymorphism
How is a Grade 1 endometrial carcinoma defined?
=<5% solid growth
How is a Grade 2 endometrial carcinoma defined?
6-50% solid growth
How is a Grade 3 endometrial carcinoma defined?
> 50% solid growth
What types of endometrial carcinomas are not routinely graded?
Serous
Clear cell
What is Stage 1 of endometrial carcinoma?
Confined to uterus:
- 1A = No/<50% myometrial invasion
- 1B = >50% myometrial invasion
What is Stage 2 of endometrial carcinoma?
Tumour invades cervical strome
What is Stage 3 of endometrial carcinoma?
Local +/or regional tumour spread:
- IIIA = Tumour invades serosa of uterus +/or adnexae
- IIIB = Vaginal +/or parametrial involvement
- IIIC = Mets. to pelvic +/or para-aortic nodes
What is Stage 4 of endometrial carcinoma?
Tumour invades:
- Bladder +/or
- Bowel mucosa (IVA) +/or
- Distant metastases
How do endometrial stromal sarcomas spread?
Infiltrate myometrium and often lymphovascular spaces
What is the most important prognostic factor in endometrial stromal sarcomas?
Stage
What is an endometrial carcinosarcoma?
Mixed tumour:
- Epithelial (carcinomatous) elements
- Stromal (sarcomatous) elements
What is the alternative name for endometrial carcinosarcoma?
Malignant Mixed Mullerian Tumour
What are the heterologous elements that can appear in 50% of endometrial carcinosarcoma cases?
Rhabdomyosarcoma (worst prognosis)
Chondrosarcoma
Osteosarcoma
How does an endometrial carcinosarcoma appear macroscopically?
Large bulky tumours
Filling cavity
Often protruded through cervical canal
What symptoms are myometrial leiomyomas associated with?
Menorrhagia
Infertility
What sort of morphology do leiomyosarcomas typically have?
Spindel cell
In what women are leiomyosarcomas most common?
> 50 years
What are the common symptoms of leiomyosarcomas?
Abnormal vaginal bleeding
Palpable pelvic mass
Pelvic pain
What is the overall 5yr survival for endometrial leiomyosarcoma?
15-25%
What is the strongest prognostic factor in leiomyosarcoma?
Stage
What are uterine fibroids?
Leiomyomas
In what age group are fibroids most common?
> 40 years
How do uterine fibroids typically present?
Menorrhagia
Pelvic mass
Slight pain/tenderness
‘Pressure’ symptoms
When might a fibroid be disproportionately painful or tender?
If ‘red degeneration’:
- Pregnancy
- Menopause
In what populations are fibroids most common?
Afro-Caribbean
How can fibroids be investigated?
Hb if high bleeding
USS is usually diagnostic
MRI for precise localisation
How do fibroids appear on USS?
Smooth
Echogenic mass
(Often multiple)
What can be used pre-op to shrink the size of a fibroid?
GnRH agonists:
- Mifepristone
If a woman’s family is complete, what operation can be offered for fibroids?
Hysterectomy
If a woman wishes to maintain her fertility, what operations can be offered for fibroids?
Myomectomy
Uterine artery embolisation
Hysteroscopic resection
How does a hydrosalpinx present?
Longstanding tubal swelling - +/- pain
Usually incidental USS finding
How does a pyosalpinx present?
Acute inflammation
Acute PID
What are functional ovarian cysts related to?
Ovulation:
- Follicular cysts
- Luteal cysts
What symptoms can functional cysts cause?
Menstrual disturbance
Bleed/rupture and pain:
- Mid cycle pain (Mittelschmerz)
(Often asymptomatic)
What are endometriomas and how do they appear?
Blood-filled endometriotic cysts:
- ‘Chocolate’ cysts
What are the signs and symptoms of endometriomas?
Severe dysmenorrhoea Premenstrual pain Dyspareunia Subfertility Tender mass with 'nodularity' and tenderness behind uterus
What is a dermoid cyst?
Benign ovarian cystic teratoma
What are the types of primary ovarian tumours arising the the surface epithelium?
Serous Mucinous Endometrioid Clear cell Brenner
If a primary ovarian tumour arises from stromal granulosa cells, what may it secrete?
Oestrogens
If a primary ovarian tumour arises from stromal theca/leydig cells, what may it secrete?
Androgens
What syndrome are ovarian fibromas linked to?
Meig’s Syndrome
What can a malignant germ cell tumour produce and how may this present?
hCG:
- False pregnancy test
AFP
If a dermoid cyst differentiates into thyroid tissue, what can occur?
Thyrotoxicosis
What does a dermoid cyst usually secrete?
AFP
no hCG if pure
How does a dermoid cysts appear on a plain x-ray?
Rim calcification
How can ovarian granulosa cell tumours present?
Precocious puberty
Postmenstrual bleeding
How can ovarian thecal tumours present?
Hirsutism
Virilisation
How does Meig’s Syndrome present?
Benign fibromas
Pleural effusion
Ascites
What primary tumours can commonly metastasise to the ovaries?
Breast
Pancreas
Stomach
GI
What sort of spread do malignant ovarian tumours display?
Early transperitoneal spreads (trans-coelomic):
- Deposits on all peritoneal surfaces
- Omental disease/infiltration
- Malignant ascites with protein exudate
What gene is linked to ovarian cancer?
HNPCC
What are the risk factors for ovarian cancer?
Increasing age
Nulliparity
Family history
What effect does COC (oestrogen) have on ovarian cancer?
Protective
What tumour markers must be tested for in suspected ovarian cancer?
CA-125
Carcino-embryonic antigen
When is CT used in the investigation of a suspected ovarian cancer?
Assessing:
- Omental disease
- Peritoneal disease
- Lymph nodes
In what proportion of ovarian cancers is CA-125 raised in?
80%
What ovarian tumours raise carcinoembryonic antigen the most?
Mucinous tumours
What is the main use of carcinoembryonic antigen?
Exclusion of metastases from GI primary
What is the ‘risk of malignancy’ index?
Menopausal status x Serum CA-125 x US score
How is a benign ovarian tumour treated?
Removal or drainage
How is a malignant ovarian tumour treated?
Oophorectomy and hysterectomy
With removal/debulking of omentum
Tumour ‘debulking’
How does cervical cancer present?
Screening
Post-coital bleeding/IMB/PMB
Acute renal failure
What surgical treatments are available for cervical cancer?
Large Loop Excision of the Transitional Zone
Fertility sparing
Wertheim
What chemotherapy agents can be used in cervical cancer?
Cisplatin:
- 40mg/m^2 weekly
Carboplatin/Paclitaxol
What are the risk factors for ovarian cancer
>50 years Nulliparity (or low parity) Delayed pregnancy FHx of breast or ovarian cancer BRCA1 and BRCA2
What are the USS scores for calculating RMI?
Features: - Multilocular cysts - Solid areas - Bilateral lesions - Ascites - Intra-abdominal 0 = No features 1 = One abnormality 3 = Two or more abnormalities
What are the menopausal scores for calculating RMI?
Premenopausal = 1 point Postmenopausal = 3 points
What is the CA-125 score measured in for calculating RMI?
U/ml
If there is an RMI score >200, what should be done?
Refer to gynaecology-oncology MDT
CT abdomen and pelvis
What staging is used for ovarian cancer?
FIGO staging
Where does ovarian cancer spread to haematogenously?
Liver
Lungs
Brain (2%)
What are the first line chemotherapy agents in epithelial ovarian cancer?
Carboplatin +/- Paclitaxel (80mg/m^2)
What other cytotoxic agents can be added if paclitaxel is not tolerated?
Doxorubicin
OR
Gemcitabine
When is intraperitoneal chemotherapy considered?
Epithelial ovarian cancer and residual disease =<1cm after primary surgery
If ovarian cancer relapses, what chemo regimen should be used?
If platinum sensitive, use cisplatin in combo with:
- Paclitaxel or
- PLDH or
- Gemcitabine
If ovarian cancer relapses and it is not platinum sensitive or the patient wants to avoid further chemo, how can it be treated
Tamoxifen
Aromatase inhibitor
What tumours does Letrozole have an effect on and how long is it given for?
ER+ tumours
Maintained for >6 months
What can cause impaired gastric emptying in gynaecological malignancy?
Locally advanced
Drugs (Opioids and anticholinergics)
Damage to gut
Autonomic neuropathy
How does impaired gastric emptying in gynaecological malignancy present?
Not usually nauseated
Then very nauseated:
- Large volume vomits
- Feels better
What causes regurgitation in gynaecological malignancy?
Obstruction/Compression of oesophagus
How does regurgitation in gynaecological malignancy present?
Dysphagia
Pain
Coughing/Stridor
What chemical or metabolic influences can result in vomiting in gynaecological malignancy?
Medications (opioids and ABx) Advanced cancer (esp. liver metastases) Sepsis Kidney/Liver impairment Biochemical
How do chemical or metabolic changes result in vomiting?
Hypercalcaemia
Hyponatraemia
Hypermagnesaemia
Uraemia
How does chemical or metabolic vomiting present?
Persistent nausea
Little relief from vomiting
How does bowel obstruction present?
Intermittent large volume vomits
Colic
How does cerebral disease result in vomiting?
Compression/Irritation by tumour
Increased ICP
Anxiety
How does vomiting induced by cerebral disease present?
Worse in the morning
Headache
How does vestibular disease result in vomiting?
Base of skull/Brainstem disease
Ear infections
Motion sickness
How does vomiting induced by vestibular disease present?
Worse on movement
Vertigo
Tinnitus
What effects do steroids have in palliative care?
Anti-emetic
Anti-inflammatory (reduce peri-tumour oedema)
What steroid can be prescribed in palliative care?
8-16mg CSCI/24 hours
When is Hyoscine Butylbromide used?
Colic:
- 20mg S/C bolus PRN
- 60-120mg/24hrs CSCI
When can anti-emetics be used in mechanical bowel obstruction?
If incomplete MBO and no colic
What anti-emetic is used in mechanical bowel obstruction?
Metoclopramide:
- 30-100mg CSCI/24 hours
What type of drug is Hyoscine hydrobromide? What dose is given?
Anti-secretory agent
0.4-2.4mg/24 hours CSCI
What examination must be done before prescribing laxatives?
Faecal impaction on examination and AXR
If there is partial obstruction, what can be prescribed as a laxative?
Sodium docusate
Movicol
When is methylnaltrexone prescribed as a laxative?
In opioid-induced constipation
What happens when follicular cysts form when ovulation doesn’t occur?
Polycystic ovaries
What are the thin walls of a follicular cyst lined by?
Granulosa cells
What are high grade malignant serous carcinomas known as?
Serous tubal intraepithelial carcinoma
What are low grade malignant serous carcinomas known as?
Serous borderline tumour
What ovarian tumours have a strong association with ovarian endometriosis?
Endometrioid
Clear cell
What is a Brenner ovarian tumour?
A tumour of transitional-type epithelium
Usually benign
What is ovarian cancer - FIGO Stage 1?
1A = Limited to one ovary 1B = Limited to both ovaries 1C = Involving ovarian surface/rupture/surgical spill/tumour in washings
What is ovarian cancer - FIGO Stage 2?
2A = Extension or implants on uterus/fallopian tube 2B = Extension to other pelvic organ (bowel, bladder)
What is ovarian cancer - FIGO Stage 3?
3A = Retroperitoneal LN mets. or microscopic extrapelvic peritoneal involvement 3B = Macroscopic peritoneal mets beyond pelvis up to 2cm 3C = 3B but >2cm
What is ovarian cancer - FIGO Stage 4?
Distant metastases
When is a transabdominal USS used?
Established thick endometrium in PMP
Ensure no hydronephrosis
Detect early ascites
Ensure pelvic abnormality isn’t secondary to upper. abdo. pathology
Why must a patient have a full bladder for transabdominal USS?
Acts as an ‘acoustic window’
Displaces gas filled bowel out of pelvis:
- Improves image quality
When is CT used for gynaecological disease?
2nd line for acute abdomen Assess post-surgical complications: - Small bowel obstruction due to adhesions - Collections/Abscesses Cancer staging Assessing chemo/radiotherapy response
When is MRI used for gynaecological disease?
Cancer staging (esp. cervical)
Characterising adnexal and uterine masses
Evaluating sub-fertility
Pituitary MR if prolactinoma
What does hysterosalpingography used?
To assess tubal patency in infertility
Can assess outline of uterine cavity
How long does a hysterosalpingogram take?
3-5 minutes