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BREAST/SEXUAL HEALTH Flashcards

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1
Q

BREAST CANCER
What are some protective factors of breast cancer?

A
  • Breastfeeding
  • Multiparity
  • Late menarche + early menopause
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2
Q

BREAST CANCER
What are the 2 main genes involved in breast cancer and how do they act?

A
  • BRCA1 = mutation of C17, 60-80% lifetime risk, stronger incidence
  • BRCA2 = mutation of C13, 45% lifetime risk
  • Tumour suppression genes that act as inhibitors of cellular growth
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3
Q

BREAST CANCER
What warrants an urgent 2ww cancer referral?
What happens under the 2ww referal?

A
  • ≥30 with unexplained breast lump ± pain
  • ≥50 with nipple discharge, retraction or other change of concern in one nipple only
  • Triple assessment
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4
Q

BREAST CANCER
What tumour marker can be used to monitor response to breast cancer treatment and disease recurrence?

A
  • CA 15-3
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5
Q

BREAST CANCER
What are some complications of breast cancer?

A
  • Locally advanced (rare), try shrink with radio, chemo, or hormone therapy to try operate, salvage surgery + stage for mets
  • Metastatic breast cancer (2Ls 2Bs) = Lungs, Liver, Bones, Brain
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6
Q

BREAST INFECTION
What is the management of lactational mastitis?

A
  • Continue breastfeeding
  • Rx if systemically unwell with FLUCLOXACILLIN or erythromycin/clarithromycin if allergic
  • May develop abscess (lump + erythema) so need drainage
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7
Q

BREAST INFECTION
What is the management of non-lactational mastitis?

A
  • co-amoxiclav 500/125mg TDS for 10-14 days
  • erythromycin/clarithromycin + metronidazole for 10-14 days
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8
Q

BREAST PAIN
What is the management of cyclical mastalgia?

A
  • Supportive bra, reassurance, PO/topical analgesia
  • Danazol (weak androgen) but SEs = breast shrinkage, acne, weight gain
  • Tamoxifen (risk of endometrial cancer)
  • Goserelin
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9
Q

GYNAECOMASTIA
What are some pathological causes of gynaecomastia?

A
  • Drugs (spironolactone, oestrogen, anabolic steroids, digoxin, finasteride)
  • Marijuana
  • Liver failure
  • Testicular failure or tumour (Can produce beta-hCG)
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10
Q

METASTATIC BREAST CANCER
What is the management?

A
  • Bisphosphonates + denosumab, radio/chemo + Sx control
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11
Q

BREAST CANCER
what is tamoxifen?

A

tamoxifen inhibits the oestrogen receptor on breast cancer cells
It increases survival by 15-25% in woman with ER+ cancer
give for 10 years in higher risk women

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12
Q

BREAST CANCER
what are the complications of tamoxifen?

A

hot flushes
nausea
vaginal bleeding
rarely thrombosis and endometrial cancer

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13
Q

BREAST CANCER
what are aromatase inhibitors?

A

letrozole
Inhibit aromatase enzyme responsible for the conversion of androgens to oestogen in post-menopausal woman
slightly better anticancer efficacy than tamoxifen

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14
Q

BREAST CANCER
what are the side effects of aromatase inhibitors?

A

hot flushes
reduced bone density
joint pains

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15
Q

PAGET’S DISEASE OF THE NIPPLE
what are the risk factors?

A
  • old age
  • FHx of breast cancer
  • Previous breast cancer
  • overweight
  • excess alcohol
  • smoking
  • risk factors for breast cancer
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16
Q

BREAST IMPLANTS
what are the complications?

A
  • capsule formation
  • infection
  • rupture and shape changes with age
  • can hamper sensitivity of mammograms
  • breast implant associated anaplastic large cell lymphoma (BIA-ALCL)
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17
Q

BREAST INFECTION
what is the management of breast abscesses?

A

aspiration + antibiotics + supportive care
surgical intervention only if aspiration and antibiotics repeatedly fail

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18
Q

PAPILLOMA
what is the clinical presentation?

A
  • bloody or clear discharge from a single duct
  • typically in a premenopausal woman
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19
Q

PAPILLOMA
what is the management?

A
  • removal via vacuum assisted excision (VAE)
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20
Q

PHYLLODES TUMOUR
what is the characteristic appearance on histology?

A

leaf-like architecture

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21
Q

CHLAMYDIA
How would you manage chlamydia?

A
  • Test for other STIs, contraceptive advice, ?safeguarding if child.
  • Doxycycline 100mg BD for 7d (C/I pregnancy or breastfeeding).
  • 1g azithromycin stat dose in pregnancy (erythromycin or amoxicillin safe too)
  • Referral to GUM for partner notification + contact tracing.
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22
Q

GONORRHOEA
What is the management of gonorrhoea?

A
  • 1g single dose IM ceftriaxone
  • if needle phobic = oral cefixime 400mg (single dose) + oral azithromycin 2g (single dose)
  • Follow-up test of cure with NAAT testing or cultures
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23
Q

BACTERIAL VAGINOSIS
What diagnostic criteria is used in BV?

A

Amsel’s (3/4)
- Thin, white discharge
- Vaginal pH >4.5
- Clue cells on cervical swab MC&S (endocervical or self-taken vaginal)
- Positive whiff test (add potassium hydroxide to get very strong fishy odour)

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24
Q

TRICHOMONAS VAGINALIS
What is the clinical presentation of TV?

A
  • PV discharge classically offensive, frothy + yellow/green.
  • Vulvovaginitis, itching, dysuria + dyspareunia.
  • May cause urethritis + balanitis in men
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25
SYPHILIS What is the clinical presentation of primary syphilis?
SYMPTOMS - single painless ulcer (chancre) on genitals - occasionally chancre on throat, anus or intravaginally
26
SYPHILIS What is the clinical presentation of secondary syphilis?
SYMPTOMS - fever - headaches SIGNS - diffuse maculopapular rash on palms and soles - patchy oral ulceration (snail track ulcers) - condylomata lata (wart-like lesions at sites of skin friction) - patchy alopecia (moth-eaten appearance) - generalised lymphadenopathy (non-tender)
27
SYPHILIS What is the clinical presentation of tertiary syphilis?
NEUROSYPHILIS - meningovascular syphilis (stroke due to arteritis) - argyll-robertson pupil (constricts to accommodation, but not to light) - loss of intellect, insight, memory, spastic paraparesis - tabes dorsalis (inflammaiton + degeneration of spinal dorsal columns) CARDIOVASCULAR - aortic aneurysm - aortic regurgitation - coronary ostia stenosis - conduction defects GUMMATOUS - gumma = nodule that heals with central scarring
28
SYPHILIS What is an Argyll-Robertson pupil?
"Accommodates but does not react" - Constricted pupil that accommodates when focusing on near object but does not react to light, often irregularly (small) shaped
29
SYPHILIS How would you manage syphilis?
- Specialist GUM (full STI screening, contact tracing, contraceptive information). - early syphilis = Single dose IM benzathine benzylpenicillin or PO doxycycline if allergic - late latent/gummatous = 3 doses IM benzathine benzylpenicillin once weekly for 3 weeks - cardiovascular syphilis = 3 days of PO prednisolone + 3 once weekly doses IM benzathine benzylpenicillin - neurosyphilis = 14 days IM procaine penicillin + oral probenecid
30
SYPHILIS What is a potential adverse effect of treating syphilis?
- Jarisch-Herxheimer reaction within a few hours of treatment - Fever, rash + tachycardia thought to be due to release of endotoxins following bacterial death
31
GENITAL HERPES What is the clinical presentation of genital herpes?
- Multiple painful ulcers - Neuropathic type pain (tingling, burning, shooting) - Flu Sx (fatigue, headaches, fever, myalgia) - Dysuria
32
GENITAL HERPES What other specific symptoms may be seen in genital herpes?
- Aphthous ulcers (small painful oral sores) - Herpes keratitis (inflammation of the cornea = blue) - Herpetic whitlow (painful skin lesion on finger/thumb)
33
GENITAL HERPES What is the management or primary genital herpes contracted before 28w gestation?
- Aciclovir during infection - Prophylactic aciclovir from 36w gestation onwards to reduce risk of genital lesions during labour + delivery - Asymptomatic at delivery can have vaginal if >6w from initial infection, if Sx then c-section
34
GENITAL HERPES What is the management of primary genital herpes after 28w gestation?
- Aciclovir during infection + immediate prophylactic aciclovir - C-section in all cases
35
GENITAL HERPES What is the management of recurrent genital herpes in pregnancy?
- Occurs if woman known to have genital herpes before pregnancy - Low risk of neonatal infection even if lesions at delivery - Prophylactic aciclovir from 36w to reduce risk of Sx at delivery
36
GENITAL HERPES What is the management of genital herpes?
- Specialist GUM Mx - Conservative (paracetamol, topical lidocaine 2% instillagel, clean with warm saltwater, topical vaseline, PO fluids, loose clothing, avoid sex). - Aciclovir may be used
37
GENITAL WARTS What causes genital warts?
- Human papilloma virus 6 + 11 - Can stay in skin + warts can develop again
38
CANDIDIASIS What is the management of candidiasis?
1st line = oral fluconazole 150mg single dose 2nd line = clotrimazole 500mg intravaginal pessary single dose - if there are vulval symptoms, consider topical imidazole in addition to oral/intravaginal antifungal - if pregnant, only local treatments (creams/pessaries) may be used - oral is contraindicated
39
HIV What is HIV? What is the pathophysiology of HIV?
- RNA retrovirus that encodes reverse transcriptase - Binds to GP120 envelope glycoprotein to CD4 receptors which migrate to lymphoid tissue where virus replicates + produces billions of new virions - Reverse transcriptase makes single strand RNA > double stranded DNA + viral DNA is integrated to host cell's DNA with enzyme integrase + core viral proteins synthesised + cleaved by viral protease - These then released + in turn infect new CD4 cells
40
HIV what are the first line investigations
HIV antigen/antibody test HIV RNA viral load
41
HIV What are the considerations with HIV and pregnancy?
- Normal vaginal delivery if viral load <50 copies/ml - Consider c-section if >50, but mandatory in >400 - IV zidovudine 4h before c-section - Neonatal PO zidovudine if maternal viral load <50 if not triple ART both for 4–6w - No breastfeeding
42
HIV What are the 4 main groups of HIV treatment?
- Nucleoside reverse transcriptase inhibitors (NRTIs) - Protease inhibitors (PIs) - Integrase inhibitors (IIs) - Non-nucleoside reverse transcriptase inhibitors (NNRTIs)
43
HIV What are some examples of and the mechanism of action of... i) NRTIs? ii) PIs? iii) IIs? iv) NNRTIs?
i) Zidovudine, tenofovir, emtricitabine – inhibits synthesis of DNA by reverse transcriptase ii) Indinavir (end –navir) – acts competitively on HIV enzyme involved in production of functional viral proteins iii) Raltegravir (end –gravir) – inhibits insertion of HIV DNA to genome iv) Nevirapine – binds directly to + inhibits reverse transcriptase
44
HIV What is the role of post-exposure prophylaxis (PEP) in HIV?
- Given within 72h of exposure to HIV+ (sooner = better) - ART therapy = Truvada (emtricitabine + tenofovir) + raltegravir for 28d - HIV test done immediately + 3m after, should abstain for 3m
45
BACTERIAL VAGINOSIS What causes BV to occur less frequently?
Less frequent if COCP or effective condom usage
46
TRICHOMONAS VAGINALIS What can it increase the risk of?
Contracting HIV by damaging vaginal mucosa BV, cervical cancer, PID pregnancy-related complications.
47
SYPHILIS What is the causative organism?
Treponema pallidum – spirochete (spiral-shaped) bacteria
48
HIV Explain the process of PCR testing
P24 antigen tests directly for viral antigen in blood + can give +ve earlier in infection compared to antibody test, HIV RNA levels tests directly for number of viral copies in blood giving a viral load
49
BALANITIS what is the clinical presentation?
- red, swollen, itchy and sore penis - pain when peeing - thick discharge from under foreskin - unpleasant smell - difficulty pulling back foreskin
50
BALANITIS what is the general management for balanitis?
- gentle saline washes - ensuring to wash foreskin properly - 1% hydrocortisone for short period
51
BALANITIS what is the treatment for bacterial infection?
flucloxacillin or clarithromycin if penicillin allergic
52
BALANITIS what is the treatment for anaerobic balanitis?
saline washing oral metronidazole
53
BALANTITIS what is the specific treatment for balanitis caused by dermatitis?
mild topical corticosteroids (hydrocortisone)
54
LYMPHOGRANULOMA VENEREUM what is it?
STI caused by serovars L1, L2 or L3 or chlamydia trachomatis
55
LYMPHOGRANULOMA VENEREUM what are the clinical features?
Painless genital ulcer Painful Inguinal lymph nodes Proctitis, rectal pain, rectal discharge (in rectal infections) Systemic symptoms such as fever and malaise
56
LYMPHOGRANULOMA VENEREUM what is the management?
Treatment is with antibiotics. Common regimes include: Oral doxycycline 100 mg twice daily for 21 days Oral tetracycline 2 g daily for 21 days Oral erythromycin 500 mg four times daily for 21 days
57
CHANCROID what are the causes?
Haemophilus ducreyi Given its relatively high incidence in topical areas and Greenland, it is important to inquire in the history about recent travel.
58
CHANCROID what are the clinical features?
- painful genital ulcer - tender unilateral inguinal lymphadenopathy
59
CHANCROID what is the management?
- single dose AZITHROMYCIN - alternatives = ceftriaxone, erythromycin or ciprofloxacin - partner notification + treatment - abscess drainage
60
COCP What are the benefits of the COCP?
- Effective contraception, rapid return of fertility after stopping. - Improvement in PMS, menorrhagia + dysmenorrhoea (acne in some). - Reduced risk of endometrial, ovarian, colon cancer + benign ovarian cysts.
61
COCP What are some side effects + risks with the COCP?
- Unscheduled bleeding common in first 3m. - Breast pain + tenderness. - Mood changes + depression. - Headaches, HTN, VTE. - Small raise in risk of breast + cervical cancer (risk normalises after 10y taking pill). - Small raise in risk of MI + stroke.
62
COCP What are the UKMEC4 criteria for the COCP?
- Uncontrolled HTN. - Migraine with aura. - >35 smoking >15/day. - Major surgery with prolonged immobility (stop 4w before major surgery) - Hx of stroke, IHD, AF, VTE. - Active breast cancer. - Liver cirrhosis or tumours. - SLE + antiphospholipid syndrome. - Breastfeeding before 6w postpartum (UKMEC2 after).
63
COCP What are the UKMEC3 criteria for the COCP?
- >35 smoking <15/day. - BMI >35kg/m^2. - Controlled HTN. - VTE FHx in 1st degree relatives. - Immobility. - Known carrier of BRCA1/2.
64
POP What are the rules regarding switching from COCP to POP?
- Best time to change is days 1–7 of the hormone-free period after finishing the COCP pack as no additional contraception required. - Any other time requires 48h contraception.
65
POP What are some risks of the POP?
- Increased risk of ovarian cysts, small risk of ectopic pregnancy with traditional POP due to reduced ciliary action, minimal increased risk of breast cancer (returns to normal 10y after stopping).
66
PROGESTERONE INJECTION What is the main side effect of the progesterone injection?
Changes to bleeding schedule main issue - Bleeding often more irregular, heavier + last longer. - Usually temporary, >1y of regular use most become amenorrhoeic. - Exclude other causes of bleeding. - Can use COCP for 3m if problematic bleeding. - Short course (5d) of mefenamic acid can halt bleeding.
67
PROGESTERONE INJECTION What are 3 unique side effects to the progesterone injection?
- Weight gain - Reduced BMD (oestrogen maintains BMD + mostly produced by follicles in ovaries) – Makes depot unsuitable for those >45 - Takes 12m for fertility to return after stopping
68
PROGESTERONE INJECTION What are the UKMEC3 + 4 criteria for progesterone injection?
- UKMEC4 = active breast cancer. - UKMEC3 = IHD + stroke, unexplained vaginal bleeding, severe liver cirrhosis + liver cancer.
69
PROGESTERONE IMPLANT What is the mechanism of action for the progesterone implant?
- Inhibits ovulation. - Thickens cervical mucus. - Alters endometrium to make it less accepting to implantation.
70
PROGESTERONE IMPLANT What are the pros of progesterone implant?
- Effective + reliable. - Can improve dysmenorrhoea + can make periods lighter or stop altogether. - No weight gain, effect on BMD, no VTE risk, no restrictions for obese patients.
71
PROGESTERONE IMPLANT What are the side effects of the progesterone implant?
- Problematic bleeding (20% amenorrhoeic, 25% frequent/prolonged bleeding, 33% infrequent, rest normal, can use COCP for 3m if problematic bleeding + no C/Is). - Can worsen acne, no STI protection.
72
PROGESTERONE IMPLANT What are the risks with the progesterone implant?
- Can be bent/fractured or impalpable/deeply implanted needing extra contraception until located (USS/XR), may need specialist removal. - Very rarely can enter vessels + migrate through body to lungs.
73
COILS What are the benefits of the IUD?
- Reliable contraception. - Insert at any time in cycle + immediate protection. - No hormones so safe in VTE risk of Hx or cancer. - May reduce risk of endometrial + cervical cancer.
74
COILS What are the drawbacks of the IUD?
- Procedure with risks for insertion/removal. - Can cause HMB/IMB which often settles. - Some women have pelvic pain. - No STI protection. - Increased risk of ectopic pregnancies. - Occasionally falls out.
75
COILS What is the mechanism of action for the IUS?
- Progesterone component thickens cervical mucus. - Alters endometrium making less hospitable + inhibits ovulation in small # of women.
76
COILS What are the benefits of the IUS?
- Can make periods lighter or stop. - May improve dysmenorrhoea or pelvic pain related to endometriosis. - No effect on BMD, VTE, no restrictions in obese pts.
77
COILS What are the drawbacks of the IUS?
- Procedure with risks for insertion/removal. - Can cause spotting or irregular bleeding. - Some women experience pelvic pain. - No STI protection. - Increased risk of ectopic pregnancies. - Occasionally falls out. - Increased incidence of ovarian cysts. - Systemic absorption can lead to progesterone Sx (acne, headaches, breast tenderness).
78
EMERGENCY CONTRACEPTION For the copper IUD, answer the following... i) effectiveness? ii) time frame? iii) mechanism? iv) extra notes?
i) 99% regardless of time in cycle ii) <120h of UPSI or 120h after earliest estimated date of ovulation iii) Toxic to sperm + ovum so inhibits fertilisation + implantation. iv) Keep in until at least next period
79
EMERGENCY CONTRACEPTION For Ulipristal acetate, answer the following... i) dose? ii) effectiveness? iii) time frame? iv) mechanism? v) extra notes? vi) side effects?
i) Single 30mg dose ii) Second most effective but decreases with time iii) <120h iv) Selective progesterone receptor modulator that inhibits ovulation v) Vomiting within 3h then repeat dose vi) Spotting + changes to next menstrual period, abdo/pelvic/back pain, mood changes, headaches, dizziness, breast tenderness
80
EMERGENCY CONTRACEPTION For Ulipristal acetate, what are the pros and cons?
Pros - More effective than levonorgestrel - Can be used >1 in one cycle Cons - Avoid breastfeeding for 1w (express but discard) - Avoid in severe asthma - Wait 5d before starting COCP or POP with 7 or 2d extra contraception needed
81
EMERGENCY CONTRACEPTION For levonorgestrel, answer the following... i) dose? ii) effectiveness? iii) time frame? iv) mechanism? v) side effects?
i) Single 1.5mg dose (3mg if BMI >26kg/m^2) ii) Least effective of group 84% iii) <72h iv) Stops ovulation + inhibits implantation v) Spotting + changes to next menstrual period, diarrhoea, breast tenderness, dizziness, depressed mood
82
EMERGENCY CONTRACEPTION For Levonorgestrel, what are the pros and cons?
Pros - Safe during breastfeeding (Avoid for 8h to avoid infant exposure though). - COCP/POP can start instantly but with extra contraception for 7/2d - Use more than once in a menstrual cycle Cons - Less effective
83
FEMALE INFERTILITY When should you refer a female to specialist services?
After >1y or... - Female >35 - Menstrual disorder - Previous abdo/pelvic surgery - Previous PID/STI - Abnormal pelvic exam
84
FEMALE INFERTILITY In terms of causes of female infertility, what are disorders of ovulation?
PCOS POI, pituitary tumours, hyperprolactinaemia, Turner syndrome, Sheehan's, previous radio/chemo
85
FEMALE INFERTILITY In the ovulatory tests, what are you looking for in mid-luteal progesterone? When would you test? What results do you expect?
- Indication of ovulation - 7d before end of cycle (usually day 21) - <16 = anovulation, >30 is ovular
86
FEMALE INFERTILITY What are the ovarian reserve tests?
- Serum FSH + LH on days 2–5 (high = poor ovarian reserve) - Anti-mullerian hormone (released by granulosa cells in growing follicles so falls as eggs depleted) - Antral follicle count on USS (Few suggest poor ovarian reserve)
87
FEMALE INFERTILITY How would you manage anovulation?
- Weight loss - Clomiphene (selective oestrogen receptor modulator on days 2–6 to inhibit oestrogen + cause more GnRH + so FSH + LH release) or letrozole (aromatase inhibitor) to stimulate ovulation. - Gonadotrophins to stimulate ovulation if resistant to clomiphene - Ovarian drilling may be used in PCOS
88
MALE INFERTILITY When should you refer a male to specialist services?
After >1y or... - Previous genital pathology or urogenital surgery - Previous STI - Systemic illness - Abnormal genital exam
89
MALE INFERTILITY What are the 5 main categories of male infertility?
- Pre-testicular causes - Testicular causes - Post-testicular causes - Genetic/congenital causes of defective/absent sperm production - Azoospermia or teratozoospermia
90
MALE INFERTILITY In terms of male infertility, what are the pre-testicular causes?
Pituitary/hypothalamus pathology, suppression due to stress, chronic conditions, hyperprolactinaemia, Kallmann's
91
MALE INFERTILITY In terms of male infertility, what are the genetic/congenital causes?
Klinefelter's, Y chromosome deletions
92
ASSISTED CONCEPTION What are the risks and complication with IVF?
- Multiple pregnancy - Miscarriage + ectopics - Ovarian hyperstimulation syndrome - Bleeding + infection at egg collection - Failure
93
ASSISTED CONCEPTION What is the clinical presentation of ovarian hyperstimulation syndrome?
- Mild = abdo pain + vomiting - Mod = N+V + ascites on USS - Severe = ascites, oliguria - Critical = anuria, VTE, ARDS
94
ASSISTED CONCEPTION What are the risk factors for ovarian hyperstimulation syndrome?
- Younger age. - Lower BMI. - PCOS. - Higher antral follicle count.
95
ASSISTED CONCEPTION What investigations would you do in ovarian hyperstimulation syndrome and what would they show? How could you identify someone at risk?
- Activation of RAAS > high renin - Haematocrit raised as less fluid in intravascular space - USS + serum oestrogen (high = risk) – monitor these to identify those at risk.
96
ASSISTED CONCEPTION How do you manage ovarian hyperstimulation syndrome?
- PO fluids - Monitor urine output - LMWH - Paracentesis for ascites - IV colloids
97
COILS What are the starting instructions for IUS?
- Up to day 7 = immediate protection. - >Day 7 = extra contraception for 7d
98
MALE INFERTILITY In terms of male infertility, what are the testicular causes?
Damage from mumps, undescended testes, trauma, cancer, radio/chemo
99
MALE INFERTILITY In terms of male infertility, what are the post-testicular causes?
Retrograde ejaculation, scarring from epididymitis (chlamydia), absence of vas deferens (may be associated with cystic fibrosis, even carriers), damage to testicle or vas (trauma, surgery, cancer).
100
MALE INFERTILITY In terms of male infertility, what are the azoospermia causes?
Steroid abuse, vasectomy
101
MALE INFERTILITY In terms of male infertility, what are the teratozoospermia causes?
Testicular cancer
102
MALE INFERTILITY How would you manage hormonal causes of infertility?
- Gonadotrophins if hypogonadotrophic hypogonadism, bromocriptine if hyperprolactinaemia + sexual dysfunction
103
ASSISTED CONCEPTION What is ovarian hyperstimulation syndrome? What is it associated with?
- Increased vascular endothelial growth factor (VEGF) from granulosa cells increases vascular permeability so fluid leaks from intravascular>extravascular space (oedema, ascites + hypovolaemia). - Gonadotrophins to mature follicles.
104
MENSTRUAL CYCLE What 2 cycles exist within the menstrual cycle?
- Ovarian cycle (development of follicle + ovulation) - Uterine cycle (functional endometrium thickens + shreds)
105
MENSTRUAL CYCLE What happens in the follicular phase?
- Independently primordial follicles mature into primary + secondary follicles with FSH receptors - Low oestrogen + progesterone = pulses of GnRH > LH + FSH release - FSH leads to follicular development + recruitment
106
MENSTRUAL CYCLE What happens as secondary follicles grow during follicular phase?
- Theca cells develop LH receptors + secrete androgens - Granulosa cells develop FSH receptors + secrete aromatase - Leads to increased oestrogen > -ve feedback on pituitary to reduce LH + FSH leading to some follicles to regress
107
MENSTRUAL CYCLE What occurs during ovulation?
- Follicle (dominant) with most FSH receptors continues developing - Secretes further oestrogen which at a threshold causes spike in LH (+ slight rise in FSH) causing release of ovum on day 14
108
MENSTRUAL CYCLE What occurs during the luteal phase?
- Dominant follicle > corpus luteum + luteinised granulosa cells converts cholesterol into progesterone for 10d to facilitate implantation + reduce FSH/LH + oestrogen - Also secretes inhibin to reduce FSH
109
MENSTRUAL CYCLE What happens if the egg is fertilised?
- Syncytiotrophoblast of embryo secretes human chorionic gonadotropin (hCG) which maintains corpus luteum
110
MENSTRUAL CYCLE What happens if the egg is not fertilised?
- hCG absence > corpus luteum degenerates into corpus albicans - Fall in progesterone + oestrogen causes endometrium to breakdown + menstruation occurs - FSH + LH levels rise - Stromal cells of endometrium release prostaglandins to encourage endometrium breakdown + uterine contraction
111
MENSTRUAL CYCLE What happens in the early secretory phase of the menstrual cycle?
- Progesterone mediated + signals ovulation occurred to make endometrium receptive, cause spiral arteries to grow longer + uterine glands to secrete more mucus
112
MENSTRUAL CYCLE What happens in the late secretory phase of the menstrual cycle?
- Cervical mucus thickens + less hospitable for sperm - Decrease in oestrogen + progesterone > spiral arteries collapse + constrict + functional layer prepares to shred
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MENSTRUAL CYCLE What are the stages of the menstrual cycle?
- Menstruation (Days 1-5) - Proliferation (Days 6-14) - Ovulation (Day 14) - Secretion (Days 16-28)
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MENSTRUAL CYCLE What happens in the proliferative phase?
- High oestrogen > thickening of endometrium, growth of endometrial glands + emergence of spiral arteries from stratum basalis to feed the functional endometrium - Consistency of cervical mucus changes to make more hospitable for sperm
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CANDIDIASIS what is the management of recurrent vaginal candidiasis?
- induction = oral fluconazole every 3 days for 3 doses - maintenance = oral fluconazole weekly for 6 months
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ERECTILE DYSFUNCTION what conditions can cause erectile dysfunction?
- HTN - diabetes mellitus - hypercholesterolaemia - drug induced - depression - anxiety - chronic stress
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ERECTILE DYSFUNCTION what are the investigations?
- HbA1c (to assess for diabetes) - serum testosterone levels (to assess for hypogonadism) - serum TSH (assess for hypo/hyperthyroidism) - serum lipid profile (assess for hyperlipidaemia) - international index of erectile dysfunction - sexual inventory for men (survey to assess severity) to consider - penile doppler USS - nocturnal penile tumescence testing - neurological evaluation - psychological assessment
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ERECTILE DYSFUNCTION what is the management?
1st line - lifestyle modification (weight loss, physical activity, reduced alcohol, smoking cessation, BP control) - psychosexual counselling - phosphodiesterase-5 (PDE-5) inhibitors = SILDENAFIL (viagra) - vacuum erection device 2nd line - intracavernous injection therapy - surgical intervention (penile prosthesis implant)
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PUBIC LICE what is it caused by?
phthirus pubis - found on pubic and perianal hairs
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PUBIC LICE what is the management?
- permethrin 5% or Malathion 0.5% advice to prevent transmission - decontamination of clothing + bedding by washing at 50 degrees - avoid close body contact + sharing of clothes, bedding and personal hygiene products
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BREAST CANCER when is wide local excision used to treat breast cancer?
- solitary lesion - peripheral tumour - small lesion in large breast - DCIS < 4cm
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BREAST CANCER when is mastectomy used to treat breast cancer?
- multifocal tumour - central tumour - large lesion in small breast - DCIS > 4cm
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INFERTILITY what is the definition of infertility?
failure to achieve pregnancy after 12 months or more of regular unprotected sexual intercourse
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INFERTILITY what is primary infertility?
couples who have never conceived
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INFERTILITY what is secondary infertility?
couples who have conceived at least once before (with same or different sexual partner)
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INFERTILITY what are the modifiable risk factors for infertility in women?
- previous or current STI - obesity - low body weight - smoking - stress - exposure to occupational environmental hazards - NSAID use - chemotherapy - antidepressants - antipsychotics - marijuana or cocaine use
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OVERIAN HYPERSTIMULATION what is the pathophysiology of shortness of breath in ovarian hyperstimulation?
- hyperstimulated ovaries release vasoactive mediators - inscreased capillary permeability causes fluid to shift from intravascular compartment to 3rd space compartment - SOB due to pleural effusion
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HIV COMPLICATIONS what is the presentation of toxoplasmosis?
- headache - confusion - drowsiness
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HIV COMPLICATIONS what is the appearance of toxoplasmosis on CT head?
single or multiple ring enhancing lesions
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HIV COMPLICATIONS what is the management of toxoplasmosis?
sulfadiazine pyrimethamine
131
HIV COMPLICATIONS what is CNS lymphoma associated with?
EBV infection
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HIV COMPLICATIONS what is the presentation of CNS lymphoma on CT head?
single or multiple homogenous enhancing lesions
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HIV COMPLICATIONS what is the management of CNS lymphoma?
- steroids - chemotherapy - whole brain radiotherapy
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HIV COMPLICATIONS how can you tell the difference between CNS lymphoma and toxoplasmosis?
CNS LYMPHOMA - single lesion - solid (homogenous) enhancement - thallium SPECT positive TOXOPLASMOSIS - multiple lesions - ring or nodular enhancement - thallium SPECT negative
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HIV COMPLICATIONS what is the important test result that can diagnosis CNS cryptococcus infection?
CSF test with india ink = positive
136
HIV COMPLICATIONS what is the most common fungal CNS infection in HIV?
cryptococcus

MY REVISION - ALL TO DO 2 (24 decks)

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