Gynaecology Flashcards
Definition primary amenorrhoea
Failure to establish menstruation by;
- 15 if normal secondary sexual characteristics
- 13 if no secondary sexual characteristics
Definition secondary amenorrhoea
Cessation of menstrual for;
- 3-6 months in women with previously normal mensus
- 6-12 months in women with oligomenorrhoea
Causes primary amenorrhoea
- Gonadal dysgenesis
- Testicular feminisation
- Congenital malformations of the genital tract
- Functional hypothalamic amenorrhoea
- Imperforate hymen
Causes secondary amenorrhoea
- Hypothalamic amenorrhoea
- PCOS
- Hyperprolactinaemia
- Premature ovarian failure
- Thyrotoxicosis
- Sheehan’s syndrome
- Asherman’s syndrome
Cause functional hypothalamic amenorrhoea
Anorexia
Cause hypothalamic amenorrhoea
Secondary stress
Excessive exercise
What is Asherman’s syndrome
Intrauterine adhesions
Initial investigations primary amenorrhoea
- Exclude pregnancy
- FBC, U&E
- Coeliac screen
- TFTs
- Gonadotrophins
- Prolactin
- Androgen
- Oestradiol
Interpretation gonadotrophins in amenorrhoea
Low levels = hypothalamic cause
Raised levels = ovarian problem
Cause of amenorrhoea with raised androgen levels
PCOS
When is HRT useful in primary amenorrhoea
With primary ovarian insufficiency due to gonadal dysgenesis, e.g. Turners - prevents osteoporosis
What is androgen insensitivity syndrome
End-organ resistance to testosterone causing genotypically male children to have female phenotype
Inheritance androgen insensitivity syndrome
X-linked recessive
Features androgen insensitivity syndrome
Primary amenorrhoea
Little or no axillary and pubic hair
Undescended testes causing groin swellings
Diagnosis androgen insensitivity syndrome
Buccal smear or chromosomal analysis to reveal 46XY genotype
Testosterone levels in androgen insensitivity syndrome
After puberty, high-normal to slightly elevated for reference range for postpubertal boys
Management androgen insensitivity syndrome
- Counselling - raise child as female
- Bilateral orchidectomy (increased risk of testicular cancer due to undescended testes)
- Oestrogen therapy
Presentation atrophic vaginitis
- Vaginal dryness
- Dyspareunia
- Occasional spotting
First line treatment atrophic vaginitis
Vaginal lubricants and moisturisers
Second line treatment atrophic vaginitis
Topical oestrogen cream
Most common type of cervical cancer
Squamous cell
Symptoms cervical cancer
- Abnormal vaginal bleeding - postcoital, intermenstrual, postmenopausal
- Vaginal discharge
What serotypes HPV highest risk for cervical cancer
16, 18, 33
Other risk factors cervical cancer
- Smoking
- HIV
- Early first intercourse, many sexual partners
- High parity
- Lower socioeconomic status
- COCP