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