Gynae Flashcards
Outline the hormonal involvement in start of puberty for girls
Hypothalamus - GnRH pulses
- > Pit - FSH + LH
- > Oestrogen release from ovaries
- > 2ndary characteristics (Thearche is first
3 phases of me trial cycle? What happens to endometrium at each? Key hormonal changes?
Day 1-4: Menstruation
Endometrium shreds
Day 5-13: Proliferative / follicular
Proliferative endometrium
-GnRH -> FSL/LH release -> follicular growth
-Follicles produce oestrogen which has -ve feedback (only one follicle matures)
-Increased oestrogen levels -> LH surge followed by ovulation around 36 hrs later
Day 14-28: Secretory (luteal) phase
Secretary endometrium
-Follicle becomes corpus luteum -> produce oestrogen and >progesterone
-Progesterone peak at day 21
-Lack of fertilisation -> endometrium breaks down
What is androgen insensitivity syndrome?
Genetically male 46XY Female phenotype (5a-reductive deficiency)
What is the difference between hypergonadotropic hypogonadism and hypogonadotrophic hypogonadism and Egs?
Hypergonadotrophic - Ovarian
Congenital - turner
Acquired - PCOS
Hypogonadotrophic - Hypothalamic
Psychological - stress, low weight
Low GnRH
Causes of outflow tract obstruction in amenorrhea ?
Vaginal agencies
Imperforate hymen
Transverse vaginal septum
Mx of prolactin secreting adenomas?
Bromocriptine
How do adrenal / thyroid cause amenorrhea? What would you see in hypothyroidism?
Overactive / under-active thyroid can cause
Hypothyroid -> raised prolactin and amenorrhea
Which ligaments connect uterus to cervix? Pelvic wall?
Uterosacral and cardinal
Broad (continuous with Fallopian tubes)
Why can HB be low and high with fibroids ?
Menorrhagia / IMB -> low
Fibroids can secrete erythropoietin -> high
Endocervix and ectocervix epithelium ? What happens in cervical ectropion ?
Endo - columnar
Ecto - Squamous (continuous with vagina)
Endocervix is visible - Often normal in pregnancy / COCP
Morphological damage in hpv
Koiliocytosis
Follow up of CIN 1? CINII/III
6/12, 1 year, 2 year
As above then yearly for 10 years
Screening for Cervial ca every?
25-49 - every 3 ears
Every 5 years until 65
Staging of cervical ca named?
FIGO
Mx of cervical Ca if no LN? LN+ve?
-ve - Radical abdominal hysterectomy
+ve - Chemo radio
Basics of lichen simplex? Lichen Planus? Lichen sclerosis?
Simplex Long Hx of itching and soreness -may be inflamed and thickened with hyper/Po pigmentation -Avoid irritants (Eg soap) Mx - Emolient, steroid cream
Planus
Purplish lesions in Angelita area
Mx- High strength steroid creams
Sclerosis
- Usually post menopausal
- Itching and sorenes
- Pink-white papules which coalesce to form parchment like skin fissures
- Risk of vulval Ca
What is a bartholian cyst? Complication?
Glands behind labia minora get blocked -> cyst
Staph / ecoli infection -> abscess
2 types of VIN ? Mx?
Usual - HPV
Most common in <45
Differentiated - due to lichen sclerosis
>45
Local excision, lazer therapy, topical immunomodulators
What is clear cell Ca? Who gets it?
Adenocarcinoma of vagina
-Daughters born to mothers given DES in pregnancy (used to prevent miscarriage)