Benign gynae Flashcards
Fibroids: All of the following statements are true except:
a - >20% of fibroids have a chromosomal abnormality
b - on cytogenetics a single fibroid comes from one single cell (not pleomorphic)
c - 20% of women develop a fibroid
d - Medroxy progesterone acetate most commonly inhibits fibroid mitotic activity
d - Medroxy progesterone acetate most commonly inhibits fibroid mitotic activity
Studies show progestogens actually increase mitotic activity
Red degeneration of a fibroid:
a - causes an elevation of the ESR
b - causes leukopaenia and lymphocytosis
c - only occurs in pregnancy
d - occurs due to embolisation of the major blood vessels supplying the myoma
a - causes an elevation of the ESR
O
Dermoid cysts
A - are the commonest ovarian neoplasms detected in pregnancy
B - are malignant in 10% of cases
C - are bilateral in 40-60% of cases
D - often have a 46, XY chromosomal composition
A - are the commonest ovarian neoplasms detected in pregnancy
O
A 15 yr old girl presents with pelvic pain and an US shows a 4 cm ovarian cyst. What is the commonest cause?
A - Dermoid cyst B - Follicular cyst C - Corpus luteal cyst D - Serous adenoma E - Endometrioma
B - Follicular cyst
Follicular cysts are most common type in adolescents (UTD).
What is the rate of amenorrhoea in patients with intrauterine synechiae?
A - 10% B - 20% C - 40% D - 60% E - 80%
C - 40%
As per UpToDate
Can be caused by TB
Rx: hysteroscopic resection
What is the most common symptom of benign breast disease?
A - pain B - tender lump C - change in breast size D - discharge E - change in menses
B - tender lump
*CHECK as other answer says A
Advantages of GnRH agonist for the treatment of fibroids include all of the following EXCEPT:
A - allow vaginal hysterectomy
B - allow return of patient Hb towards normal before surgery
C - diagnostic test to distinguish between fibroid and leiomyosarcoma
D - allows hysteroscopic resection of fibroid
E - reduced intraoperative blood loss
C - diagnostic test to distinguish between fibroid and leiomyosarcoma
What percentage of fibroids will shrink with GnRH analogues?
A - 10% B - 25% C - 50% D - 75% E - 90%
C - 50%
Cochrane review states 47% reduction in volume
After 6 months of GnRH analogues, how much reduction in uterine size would you expect?
A - 10% B - 25% C - 50% D - 75% E - 90%
C - 50%
The most frequent cause of dyspareunia is
a - inadequate lubrication b - retroverted uterus c - vaginismus d - endometriosis e - pelvic inflammatory disease
a - inadequate lubrication
O
30 yo para 1 with a 3 yo child presents with menorrhagia and on VE there is a 12 week fibroid uterus palpable. She would like another child in the future. Management:
a - TAH b - Myomectomy abdominally c - GnRH analogue for 6/12 d - Continuous provera for 9/12 e - Hysteroscopic resection
b - Myomectomy abdominally
?
Can’t confirm hysteroscopic resection unless know fibroids are submucosal.
No benefit from progestogen only therapy
Which of the following is correct in regard to premenstrual syndrome?
A - it is due to low progesterone level
B - bromocriptine is more effective than cyclical synthetic progesterone in treating PMS
C - cyclical progesterone showed no advantage over placebo in treating PMS
D - it is due directly to endogenous endorphin withdrawal
E - it is related to HLA B27 typing
C - cyclical progesterone showed no advantage over placebo in treating PMS
A woman had a NVD with an episiotomy and has been BF for 8 weeks. She presented complaining of dyspareunia. O/E the episiotomy is well healed. What is the most likely diagnosis?
A - suture granuloma
B - atrophic vaginitis
C - PND
D - Narrowed introitus
B - atrophic vaginitis
A woman has a regular 24 day cycle and is experiencing midcycle bleeding. Which of the following is correct?
a. Oestrogen breakthrough
b. Oestrogen withdrawal
c. Progesterone breakthrough
d. Progesterone withdrawal
e. Inadequate androgens
b. Oestrogen withdrawal
Physiologic intermenstrual bleeding at the time of expected ovulation is secondary to the brief abrupt decline in estradiol that follows its preovulatory surge.
Milford
A 46 yo lady presented with severe menorrhagia for six months and clinical evidence of a tender enlarged uterus. What is your first investigation?
A - hysteroscopy and D&C B - FBC C - LH and FSH D - Coagulation profile E - Serum progesterone
B - FBC
Milford
A woman presented to you with lack of sexual excitement. What is the most likely reason?
A - fear of pregnancy B - poor coital techniques C - marital discordance D - endometriosis E - pelvic congestion syndrome
C - marital discordance
25 yo. O/E 5 cm simple cystic R adnexal mass confirmed on US. Mx?
A - repeat exam in 3/12
B - give OCP and repeat US in 1/12
C - laparotomy
D - laparoscopy and aspiration of cyst
A - repeat exam in 3/12
<50mm diameter - do not require f/u
- Likely physiological and almost always resolved within
50-70mm - yearly USS f/u
25 yo, 1 yr history of acute virilizing symptoms and normal pelvic exam. LH 2 (low) FSH 3 (low-normal) Testosterone 2-3x normal DHEAS normal 17 OHP Normal
A - Cushing’s syndrome B - PCOS with insulin resistance C - Late onset CAH D - Sertoli-Leydig cell tumour E - Adrenal cortical adenoma
D - Sertoli-Leydig cell tumour
O
43 yo rapid onset virilizing symptoms, normal pelvic exam
LH 2 L (4-25) FSH 3 N Test 12.3 H (0.5-2.5) DHEAS 25 H (0.9-11.7) 17 HOP N
A - Cushing syndrome
B - Polycystic ovarian syndrome with insulin resistance
C - Late onset congenital adrenal hyperplasia
D - Sertoli-leydig tumour
E - Adrenal cortical adenoma
E - Adrenal cortical adenoma
O
22 yo, long Hx irregular menses and hirsuitism. Short stature, OE borderline clitoromegaly. LH 12 (N) FSH 6 (N) Test 3 (1.5x normal) DHEAS 21 (1.5x normal) 17 HOP 16.5 (2x normal)
A - PCOS
B - Late onset CAH
C - Androgen secreting tumor of the ovary
D - Androgen secreting tumor of the adrenal
E - Ovarian hyperthecosis
B - Late onset CAH
*Isolated DHEAS would suggest androgen secreting tumor of the adrenals
O
22 yo long Hx irregular menses and hirsuitism LH 1.9 FSH 6 Test 1.5x normal DHEAS 1.5x normal 17 HOP normal
A - Cushing’s syndrome B - PCO C - Late onset CAH D - Sertoli-leydig tumour E - Adrenal cortical adenoma
B - PCO
47 yo has progressive menorrhagia with regular cycles. O/E uterus normal anteverted with no adnexal masses. Hysteroscopy – regular cavity, no pathology.
D&C – secretory normal endometrium.
Management?
A - Cyclic Progesterone
B - OCP
C - NSAIDS
D - Advise endoablation, compared to TAH is more effective and less complications
E - Advise endoablation is adequate contraception
A - Cyclic Progesterone
*CHECK as other answer says C
How long does it take to stop heavy bleeding with GnRH analogues?
A - 12 hrs
B - 18 hrs
C - 1 week
D - 4 weeks
D - 4 weeks
Begins to work after 2 weeks
Which of the following is true concerning uterine fibroids?
A - characteristically cause pain
B - associated with nulliparity
C - 1% undergo sarcomatous change
D - should be removed at caesarean section if larger than 2cm diameter
B - associated with nulliparity
O
0.02-0.3% undergo sarcomatous change
A 35 yo with menorrhagia and a 6 cm intramural fibroid wishes to become pregnant. Should she?
A - ignore fibroid and attempt to conceive
B - 3/12 of GnRH agonist then attempt to conceive
C - undergo myomectomy at laparotomy after GnRH analogue
D - undergo hysteroscopic resection of fibroid
A - ignore fibroid and attempt to conceive
There is insufficient evidence to determine whether myomectomy for IM fibroids improves fertility outcomes
- mainly submucosal or those that distort the cavity
You have been asked to see a 22yo nulligravida who has oligomenorrhoea and idiopathic hyperprolactinemia. She desires pregnancy. Her physician initiated 2.5mg bromocriptine BD, and she is experiencing orthostatic symptoms and moderate nausea. Serum bHCG is negative, TSH normal and MRI normal. The most appropriate next step in her management is to
a. Advise her to continue bromocriptine and she will eventually become tolerant of the medication
b. Discontinue the bromocriptine
c. Reduce the dose to ½ tablet at bedtime until she becomes tolerant of the medication
d. Tell her to take an extra dose at bedtime
c. Reduce the dose to ½ tablet at bedtime until she becomes tolerant of the medication
O
1.25mg nocte for 5 nights, and gradually up titrate to 7.5mg daily in 2-3 divided doses over about 3 weeks
Common adverse effects:
- N/v, headache, postural hypotension, vertigo, GI disturbance
- Minimised by taking at night and then taking tablets with food
A 22yo woman has had severe hirsutism for 7 years and oligomenorrhoea since menarche. Her sister has mild hirsutism and uses the COCP. She is 1.5 metres tall and weighs 50kg. Pelvic examination shows borderline clitoromegaly but is otherwise normal. Hormone profile shows LH 19 [5-25] FSH 6 [4-22] Testosterone 3 [0.5-2.6] DHEAS 21 [0.9-11.7] 17-OH progesterone 16 [0.8-8.0]
The MOST LIKELY diagnosis is:
a. PCOS
b. Ovarian hyperthecosis
c. Late onset CAH
d. Androgen secreting adrenal tumour
e. Androgen secreting ovarian tumour
c. Late onset CAH
Which of the following drugs is NOT associated with non-androgen dependent hair growth (hypertrichosis)
a. Phenytoin
b. Cyclosporin A
c. Ranitidine
d. Diazoxide
c. Ranitidine
All are characteristic behavioural components of the Chronic pelvic pain syndrome EXCEPT
a. Pain is refractory to medical management
b. Signs of depression have begun
c. The patients role in the family has changed
d. A history of sexual abuse is usually present
d. A history of sexual abuse is usually present
In the HAIR-AN syndrome, the mechanism of insulin resistance is
a. Abnormalities in the insulin receptor
b. Obesity related changes in ovarian function
c. Underlying diabetes mellitus
d. Alterations in adrenal steroid synthesis pathways
e. Alterations in ovarian steroidogenic enzymes
a. Abnormalities in the insulin receptor
O
Hyperandrogenism
Insulin resistance
Acanthosis nigricans
The most common cause of introital dyspareunia is:
a. Monoilial vulvovaginitis
b. Herpes genitalis
c. Inadequate arousal
d. Vaginismus
c. Inadequate arousal
O
A blood assay of which of the following is the most direct measure of adrenal androgen activity
a. Androstenedione
b. Cortisol
c. DHEAS
d. Testosterone
c. DHEAS
O
A 25yo presents with virilisation over the past year. Her menstrual cycles are irregular and infrequent. On examination she is obese, has marked facial hair growth and clitoromegaly. Uterus is slightly enlarged, ovaries not easily palpated. Hormone profile shows testosterone of 8 [normal 1-4], and DHEAS of 8 [normal 1-10]. The MOST APPROPRIATE next step in diagnosis is:
a. Vaginal ultrasound of the ovaries
b. Dexamethasone suppression test
c. Measurement of serum 17-OH progesterone
d. Measurement of serum androstenedione
e. Laparoscopy or laparotomy
a. Vaginal ultrasound of the ovaries
O
Concern for ?SL tumor
Regarding therapy for mild to moderate endometriosis, which of the statements below is LEAST CORRECT
a. Monthly fecundity over the first 36 weeks is significantly increased after laparoscopic treatment of mild or moderate endometriosis
b. There is a tendency for fertility to plateau at the same level with either surgery or expectant management
c. Danazol reduces both pain and disease progression
d. After a course of GnRH analogue therapy, fecundity is transiently improved in comparison to expectant management
d. After a course of GnRH analogue therapy, fecundity is transiently improved in comparison to expectant management
RANZCOG 2011 answer
Medical treatment does not affect the fertility rate
The principle secretory product of polycystic ovaries is
a. Androstenedione
b. Testosterone
c. DHEAS
d. Oestrone
e. Oestradiol
a. Androstenedione
O
Cholesterol converted to androstenedione by insulin. Further converted to testosterone.
In patients with hyperandrogenic chronic anovulation, all of the following are described EXCEPT
a. Raised LH:FSH ratio in serum
b. Hyperoestrogenism
c. Raised serum triglyceride, reduced HDL cholesterol
d. Increased SHBG
d. Increased SHBG
O
Insulin resistance –> increased insulin –> increased androgen production by ovarian theca cells and reduced hepatic synthesis of sex hormone-binding globulin
Low SHBG –> high levels of free testosterone
In patients with hyperandrogenic chronic anovulation, which is LEAST CORRECT?
a. Insulin inhibits granulosa cell production of IGF-1 binding protein
b. Insulin inhibits hepatic production of SHBG
c. Insulin, through homology with IGF-1, binds to the IGF-1 receptor
d. Metformin increases circulating androgen levels by reducing serum insulin
d. Metformin increases circulating androgen levels by reducing serum insulin
O
Amenorrhoea and galactorrhoea is LEAST likely to be caused by
a. Pituitary tumour
b. Chlorpomazine
c. Thyrotoxicosis
d. Metoclopramide
e. Chronic renal failure
c. Thyrotoxicosis
O
Hypothyroidism more common to cause galactorrhea and amenorrhoea
Hyperthyroid rarely can
Which of the following statements regarding the mechanism of anti-androgen effects is LEAST correct
a. Cyproterone acetate inhibits 5-alpha reductase
b. Spironolactone competitively inhibits binding to the dihydrotestosterone receptor and inhibits 5-alpha reductase
c. Finasteride inhibits 5-alpha reductase
d. Cimetidine weakly binds to the dihydrotestosterone receptor
a. Cyproterone acetate inhibits 5-alpha reductase
O
Cyproterone and spironolactone bind to androgen receptor and exert mixed agonism-antagonism.
Cyproterone acetate blocks binding to dihydrotesterone to receptors
5-alpha-reductase
- converts testosterone to dihydrotestosterone
Anti-androgen progesterone
Ginet
Finasteride used for male pattern baldness - specific 5-alpha reductase inhibitor
A 62yo woman has pain in left lower quadrant of the abdomen. She had similar episodes on three previous occasions. Exmaination shows tenderness in the left lower quadrant with rebound tenderness. She has a Hb 136 and WCC 15.4 with 82% neutrophils. Urinalysis 5-6 leuks in high power field. The MOST likely diagnosis is
a. acute cholecystitis
b. acute diverticulitis
c. acute pyelonephritis
d. appendicitis
e. spontaneous bacterial peritonitis
b. acute diverticulitis
O