O&G:Gynae Flashcards
(230 cards)
What are fibroids also known as?
Uterine leiomyoma
What are fibroids?
Benign tumours of the myometrium
What are risk factors for fibroids?
- more common near the menopause
- early puberty
- afrocarribbean descent
- family history
What are protective factors for fibroids?
Parous women
Late puberty
Previous taking of COCP or injectable progesterone
Histology of fibroids
Smooth muscle and fibrous elements present
‘Whorled’ appearance in transverse section
Monoclonal origin
How are fibroids related to hormones?
Oestrogen (and probs progesterone) sensitive
- in pregnancy, equally likely to grow/shrink/stay the same
- in menopause, regress and calcify due to reduction in circulating oestrogen.
- HRT may cause growth
What are the possible sites for fibroids?
Intramural
Subserosal
Submucosal
Clinical features of fibroids
- asymptomatic 50%
- menorrhagia 30%
- intermenstrual bleeding
- pressure effects: frequency/urgency (bladder), hydronephrosis (ureter), infertility (tubal ostia)
- sub fertility: blocked tubal ostia, prevention of implantation, dysmenorrhea
Complications of fibroids
Painful if:
- torsion (bedunculated fibroid)
- degeneration (red, avascular necrosis)
- malignancy (more likely if pain, rapid growth, growth post menopausal + poor response to GnRH)
What are the pregnancy complications with fibroids?
- premature labour
- malpresentation
- PPH
- transverse lie
- obstructed labour
- red degeneration
Investigations of fibroids?
Abdo/bimanual pelvic exam
- solid mass arising from pelvis and continuous with uterus
- multiple small fibroids give: irregular ‘knobbly’ enlargement of uterus
TVUS/TAUS
MRI/laparoscopy if needed
Hysteroscopy to assess disortion of uterine cavity
FBC
- decrease if heavy bleeding
- increase as fibroids can secrete erythropoietin
What is the Mx for fibroids?
Asymptomatic + slow growing = none
Fibroids <3cm assoc with heavy bleeding
- TXA, NSAIDs, progesterone injections
- IUS or COCP
Fibroids >3cm assoc with heavy bleeding
- ulipristal acetate (progesterone-receptor modulator)
- GnRH agonists (induce temporary menopausal state, max 6month use)
- Mifepristone (anti progesterone - shrinks fibroids)
What are the SE of mifepristone?
Vasomotor Sx
Endometrial hyperplasia
What are the SE of GnRH agonists?
Bone density loss
What are the surgical Mx options for fibroids?
Hysteroscopic surgery Myomectomy Hysterectomy Uterine artery embolisation Myolysis
What are serous cystadenomas?
Papillary growths which may be so prolific the cyst looks solid
Get them aged 40-50yrs old
What are mucinous cystadeonmas?
Mucin filled and can become huge
20-40 yrs
What are teratomas?
Arising from germ cells
Young, premenstrual women
Can contain hair + teeth
What are benign solid tumours?
Fibromas
- can cause Meig’s syndrome: ascites + right pleural effusion
Thecomas
- secrete oestrogen and androgens
Adenofibromas
What are functional cysts?
Only in menstruating women (risk factor is early menarche)
Made up of:
- follicular cysts - persistently enlarged cysts
- leutien cysts - persistently enlarged corpora lutea
What are chocolate cysts?
Endometriomas caused by endometriosis
Accumulation of blood in the ovary (Dark-brown cyst)
What are symptoms of ovarian cysts?
- asymptomatic
- ache/pain of abdo + lower back
- dysparenuina
- large cysts have pressure effects
> bladder: urgency
> veins: oedema and varicostes - large cysts can cause abdo distension (dull to percuss)
What are complications of cysts?
Rupture
- fever, severe abdo pain, peritonitis, shock
Torsion
- fever, severe abdo pain
Hamorrhage + infarction
Pseudomyxome peritone: in mucinous cyst adenomas, mucinous cells disseminate and clog up pelvic viscera
How do you investigate cysts?
USS CT/MRI Laparoscopy + fine needle aspirate CA125 (rule out cancer) Pregnancy test (rule out pregnancy) Urinalysis (rule out infection)