Gynae Flashcards
What are fibroids?
Benign tumours of the smooth muscle of the uterus that are oestrogen sensitive (grow in response to oestrogen)
Also called uterine leiomyomas
How common are fibroids?
- Very common - 40-60% of women in later reproductive years
- More common in black women
What are the types of fibroids?
- Intramural: within myometrium
- Subserosal: just below outer layer of uterus (grow outwards)
- Submucosal: just below lining of uterus
- Pedunculated: on a stalk
What is the presentation of fibroids?
Often asymptomatic
* Menorrhagia (heavy period)
* Prolonged period (> 7 days)
* Abdominal pain (worse during period)
* Bloating
* Urinary/bowel Sx: due to pelvic pressure/fullness
* Deep dyspareunia
* Reduced fertility
What investigations should be done for fibroids?
- Hysteroscopy: submucosal fibroids presenting with heavy menstruation
- Pelvic USS
- MRI before surgery
What is the medical management of fibroids?
- Mirena coil - depending on size & shape of fibroids/uterus
- NSAIDs and tranexamic acid - Sx management
- Combined oral contraceptive
- Cyclical oral progestogens
- Referral to gynaecology if > 3cm
What is the surgical management of smaller and larger fibroids?
Smaller fibroids:
* Endometrial ablation
* Resection of submucosal fibroids
* Hysterectomy
Larger fibroids:
* Uterine artery embolisation
* Myomectomy- if still want to conceive
* Hysterectomy
What is uterine artery embolisation?
- Catheter inserted into femoral artery, then passed through to uterine artery
- Once in correct place, particles injected that cause a blockage in the arterial supply to the fibroid: starves it of oxygen causing it to shrink
What medications may be used before fibroid surgery?
GnRH agonists e.g. goserelin/leuprorelin
* Used to reduce size of fibroid before surgery by reducing the amount of oestrogen maintaining the fibroid
* Usually only used short-term
What is myomectomy?
Surgically removing fibroid via laparoscopic surgery (keyhole) or laparotomy (open surgery)
* Only Tx known to potentially improve fertility in fibroid patients
What is endometrial ablation?
- Used to destroy the endometrium
- Balloon thermal ablation: inserting specially designed balloon into endometrial cavity & filling it with high-temp fluid that burns the endometrial lining of uterus
What is a hysterectomy?
Removing the uterus & fibroids
* May be laparoscopy, laparotomy or vaginal approach
* Ovaries may be removed or left (depends on patient preference, risks & benefits)
What are some complications of fibroids? (7)
- Iron deficiency anaemia (from heavy period)
- Reduced fertility
- Pregnancy Cx e.g. miscarriages, premature labour, obstructive delivery
- Constipation
- Urinary outflow obstruction/ UTI
- Red degeneration of fibroid
- Torsion of fibroid (usually affects pedunculated fibroids)
- Malignant change to leiomyosarcoma (very rare)
What is red degeneration of fibroids?
Ischaemia, infarction & necrosis of the fibroid due to disrupted blood supply
* More likely to occur in fibroids > 5cm during 2nd + 3rd trimester
What are possible causes of ischaemia in red degeneration of fibroids?
- As fibroid rapidly enlarges during pregnancy it outgrows its blood supply
- Kinking in blood vessels as uterus changes shape & expands during pregnancy
How does red degeneration of fibroids present?
- Severe abdo pain
- Low-grade fever
- Tachycardia
- Vomiting
What is the management of red degeneration of fibroids?
Rest, fluid, analgesia
What are ovarian cysts?
Cyst = Fluid-filled sac
* Functional ovarian cysts - related to fluctuating hormones of menstrual cycle
* Very common in pre-menopausal women (benign usually)
What is the presentation of ovarian cysts?
- Most are asymptomatic
- Pelvic pain: if ovarian torsion, haemorrhage or rupture of cyst
- Bloating
- Fullness in abdomen
- Palpable pelvic mass
What are the two types of functional cysts?
Follicular cysts (MC):
* Occur when follicle fails to rupture and release egg
* Harmless & tend to disappear after a few cycles
* Typically have thin walls & no internal structures = give reassuring appearance on USS
Corpus luteum cysts:
* Occur when corpus luteum fails to break down & instead fills with fluid
* May cause pelvic discomfort/pain/delayed period
* Often seen in early pregnancy
What are some other types of ovarian cysts (not functional)?
- Serous cystadenoma: benign tumour of epithelial cells
- Mucinous cystadenoma: same as above but these can become huge & take up lots of space in pelvis/abdomen
- Endometrioma: lumps of endometrial tissue within ovary (occurs in endometriosis), can cause pain & disrupt ovulation
- Dermoid cysts/Germ cell tumours: benign ovarian tumours, teratomas (come from germ cells & may contain various tissue types e.g. skin, teeth, hair, bone), associated w/ ovarian torsion
- Sex Cord-stromal tumours: rare, can be benign or malignantm, arise from stroma or sex cords, several types - includes Sertoli-Leydig cell tumours & granulosa cell tumours
What features of an ovarian cyst history/examination suggest malignancy?
- Abdo bloating
- Reduced appetite
- Wt loss
- Early satiety
- Urinary Sx
- Pain
- Ascites
- Lymphadenopathy
What investigations are done for ovarian cysts?
- Premenopausal women w/ simple ovarian cyst < 5cm on USS don’t need further Ix
- Women < 40 years with complex ovarian mass require tumour markers for a possible germ cell tumour (LDH, alpha-FP, HCG)
-Laparoscopic ultrasound guided aspiration - CA125 = tumour marker for ovarian cancer
What are some non-malignant causes of raised CA125?
- Endometriosis
- Fibroids
- Adenomyosis
- Pelvic infection
- Liver disease
- Pregnancy