Week 3 Flashcards
General principles of contraception: 7 main strategies
1) Stop/block production of sperm
2) Block sperm entry into/past cervix
3) Thicken cervical mucosa: Progestin methods
4) Ligate/occlude/remove fallopian tube
5) Prevent ovulation (Progestin alone, Progestin + Estrogen Combo)
6) Avoid intercourse when ovulating
7) Thin endometrium to prevent implantation (Progestin)
Effects of exogenous Progestin (6)
1) Inhibits ovulation by suppressing function of HPO axis
2) Modifies midcycle surges of LH and FSH
3) Diminishes ovarian hormone production
4) Reduces activity of cilia
5) Produces endometrial changes unfavorable to embryo implantation
6) Thickens cervical mucus to impede sperm transit
Effects of exogenous estrogen (4)
1) Helps stabilize uterine lining → less breakthrough bleeding
2) Added suppression of FSH - less follicle development
3) Increases SHBG → less male effects (i.e. acne)
4) Reduces ovarian cancer, endometrial, colon cancer risks
Risks of estrogen
CLOTTING
Increases clotting factors 2, 7, 10, 12, 8, and fibrinogen → shift towards thrombus formation and prevention of clot dissolution → greater risk of venous and arterial clot formation
Higher estrogen = more clotting factors
Who should avoid contraception with estrogen?
Smoker > age 35
CAD, heart disease, history of clots (DVT, PE), uncontrolled HTN, diabetes with vascular changes
Migraines with aura
Active liver/gallbladder problems
Breast cancer (Estrogen dependent cancers)
Major surgery with prolonged immobilization
Copper IUD:
Creates inflammatory reaction in uterus
Copper acts as spermicide
Non-hormonal method
Emergency contraceptive options
prevent pregnancy AFTER sex
Mechanism: NOT the same as abortion pill, is basically contraceptives at a much higher dose
1) Plan B: Levonorgestrel, progestin only (75% efficacy)
2) Copper IUD: 99% effective
3) Ella: ulipristal acetate = progesterone receptor modulator, better efficacy than Plan B
Squamocolumnar junction of cervix
between stratified squamous epithelium of ectocervix and glandular columnar epithelium of endocervix
Area where 99% of HPV-associated cervical cancer arise
2013 recommendations for cervical cancer screening:
Cervical cytology screening should begin at age 21
Cervical cytology is recommended every 3 years for women between ages of 21-29 years
Cervical cytology screening with HPV co-testing is recommended every 5 years for women between age 30-65
Cervical cytology screening should stop for women at age of 65 years if she has been adequately screened and had not had CIN2 or CIN3 lesions for previous 20 years
Goal of screening for cervical carcinoma
Catch DYSPLASIA (CIN) before it develops into carcinoma
Progression from CIN –> carcinoma takes 10-20 years
PAP SMEAR = GOLD STANDARD
What do you do if you get an abnormal Pap smear test?
-Confirmatory colposcopy (visualization of cervix with magnifying glass) and biopsy
Limitations of the Pap smear?
Inadequate sampling of transformation zone (false negative screening)
Limited efficacy in screening for adenocarcinoma
Human Sexual Response Cycle
Four phases:
Excitement
Plateau
Orgasm
Resolution
Desire phase
no measurable physiologic changes, desire is different than attraction and can be augmented or inhibited by learned responses and experiences
Arousal/Excitement Phase
physiologic changes occur
1) Increased pulse and respiration
2) Shift blood flow to pelvis and genitalia
3) Shift in blood flow to skin
4) Nipple erection
Erection in men mechanism?
increased penile blood flow due to relaxation of penile arteries and corpus cavernosal smooth muscle
Mediated by release of NO from nerve terminals and endothelial cells → cGMP synthesis in smooth muscle cells → muscle relaxation, increased blood flow to corpus cavernosum
Plateau Phase
heightened state of arousal, physiologic changes are stable
Orgasm Phase
series of rhythmic contractions of the perineal muscles
Male → 3-7 ejaculatory spurts of seminal fluid
Female → elevation of “orgasmic platform” (posterior vaginal wall - levator ani, pubococcygeus)
Resolution phase
Males
orgasm followed by obligatory resolution phase - return to baseline, further stimulation cannot produce excitement
Varies in length from 5 minutes to 24 hours or longer
Resolution phase
Females
resolution not always obligatory, can have repeated orgasm without resolution to a basal state
Medical Model of Sexual Dysfunction: 4 parts
Sex is a physiologic process
Sexual dysfunctions result from alterations in physiology
Alterations come from “blocks” or interruptions in the sexual response cycle
Emotional responses may alter or stop response cycle
PDE5 inhibitors
Sildenafil, Vardenafil, Tadalafil
Inhibits breakdown of cGMP
No effect on absence of sexual stimulation
Side effects: headaches, dizziness, flushing, sudden hearing loss, anterior optic neuropathy
Desire Phase Disorders: (2)
almost always due to performance anxiety or aversion
1) Low Libido - Hypoactive Sexual Desire Disorder:
2) Inhibited sexual desire - Sexual Aversion Disorder:
Hypoactive Sexual Desire Disorder
Causes: Chronic disease, depression, hypoestrogenic states
Persistently or recurrently deficient sexual/erotic thoughts or fantasies and desire for sexual activity
Sexual Aversion Disorder
Results of pain or other dysfunction
Sexual aversion and HSDD are a continuum
Dyspareunia
pain with intercourse
Vaginismus
involuntary spasm of muscles around outer third of vagina
Makes penetration impossible
Causes: pain, religious orthodoxy, negative parental attitudes
Primary ovarian tumors: list them
1) Epithelial neoplasms (60-70% of ovarian tumors)
- Serous
- Mucinous
- Endometroid
- Clear cell
2) Germ cell (15-20%)
-Teratomas
-Dysgerminoma
-Yolk Sac tumor
Choriocarcinoma
3) Sex Cord Stromal Neoplasms: 5-10%
- Granulosa cell tumors
- Fibromas and thecomas
- Sertoli-Leydig cell tumors
Major risk factors for ovarian tumors?
Infertility, unopposed estrogen > 10 years, family history, nulliparity
BRCA1 and 2
BRCA1 and BRCA2
- what chromosomes?
- results in what kind of cancer?
BRCA1: Ch17
BRCA2: Chr13
DNA repair genes
Breast and ovarian cancer risk
Typically high grade SEROUS carcinoma*
Epithelial ovarian neoplasms can be ______, _______ or _________.
4 subtypes?
benign, borderline, or malignant
- Serous
- Mucinous
- Endometroid
- Clear cell
Epithelial ovarian neoplasms are derived from __________ that lines the ovary and fallopian tubes
–> fimbriated end of fallopian tube may be origin
coelomic epithelium
Benign epithelial ovarian neoplasms = ________
main features?
in pre or post menopausal women?
Cystadenomas
Single cyst, simple, flat lining
Usually in PREmenopausal women (30-40 years)
Malignant epithelial ovarian neoplasms = ________
main features?
in pre or post menopausal women?
Cystadenocarcinomas
- Complex cysts with thick, shaggy, lining
- Hemorrhage, necrosis, rapidly increasing abdominal girth
Usually in POSTmenopausal women (60-70 yrs)
Serous epithelial ovarian neoplasm
Main features?
main buzz words (2)
what serum marker is elevated?
Full of water fluid, usually also cystic
Most frequent subtype
1) HIERARCHICAL BRANCHING* cuboidal cells (resemble tubal epithelium, but without cilia)
2) PSAMMOMA BODIES*
Increased CA-125 marker
BRCA1 –> increased risk for SEROUS carcinoma
Mucinous epithelial ovarian neoplasm
Main features?
main buzz words (1)
full of mucus-like fluid, usually also cystic
Huge tumors
1) Can have GOBLET CELLS** present
Clear cell epithelial ovarian neoplasm
2 main buzzword features
Very rare, but may be aggressive
1) Associated with ENDOMETRIOSIS**
2) “HOBNAIL CELLS” - nuclei bulging into cystic space without apparent cytoplasm**
Endometrioid epithelial ovarian neoplasm
Main buzzword/fetature?
*Resemble normal endometrial glands - same appearance as uterine endometrioid tumors
**→ MUST exclude metastasis from uterine tumor
Usually are malignant
Sex Cord Stromal Neoplasms
Include what 3 subtypes?
Granulosa cell tumors
Fibromas and thecomas
Sertoli-Leydig cell tumors
Granulosa cell tumors
2 buzzword histology features?
Presentation?
Neoplastic proliferation of granulosa cells
Often produce estrogen → presents with signs of estrogen excess
1) Call-Exner Bodies** (resembles primitive follicle)
2) and nuclear grooves
Fibromas
benign tumor of fibroblasts
can get Meig’s Syndrome
Appears fibrous and pink
Meig’s Syndrome
Associated with pleural effusions and ascites = Meig’s Syndrome
Resolves with removal of tumor
Sertoli-Leydig cell tumors
Recapitulates developing testis
-Composed of Sertoli cells that form tubules and Leydig cells with characteristic Reinke crystals
May produce androgen → hirsutism and virilization
Germ Cell Tumors
subtypes?
1) Mature and Immature Teratomas
2) Dysgerminoma
3) Yolk sac tumors (aka endodermal sinus tumor)
4) Choriocarcinoma
Mature cystic teratoma
Females
BENIGN in females
Composed of fetal tissue derived from two or three embryologic layers (skin, hair, bone, cartilage, gut, etc.)
Usually occurs in reproductive years
Can be bilateral
Struma ovarii
teratoma composed primarily of thyroid tissue
Immature teratoma
Females
malignancy
Microscopic identification of immature neuroepithelium
Tightly packed small dark cells with lots of mitoses
Grading based on amount of immature neural tissue (more is worse)
Dysgerminoma
histological appearance?
prognosis?
what is elevated in serum?
Composed of large cells with clear cytoplasm and central nuclei (resemble oocytes) - Female counterpart to seminoma
Can be bilateral
Good prognosis
Serum LDH elevated
Yolk Sac Tumors (aka endodermal sinus tumor)
Histology?
Buzz word for histology?
Elevated serum levels of what?
Malignant tumor that mimics yolk sac
Most common germ cell tumor in children
High AFP
Contains SCHILLER-DUVAL BODIES (glomerulus-like structures)
Choriocarcinoma
malignant tumor composed of what two cell types?
Mimics what tissue?
How does it spread?
What is elevated in the patients serum?
Response to chemo?
Malignant tumor composed of cytotrophoblasts and syncytiotrophoblasts
Mimics placental tissue but villi are ABSENT
Small, hemorrhagic with early hematogenous spread
High B-hCG
Poor response to chemo
Krukenberg Tumor
metastatic mucinous tumor, involves both ovaries
Most commonly metastatic GASTRIC CARCINOMA
SIGNET RING CELL morphology
Pseudomyxoma peritonei
“Jelly Belly”
Mucin throughout abdomen
Can be due to mucinous tumor of the appendix with metastasis to the ovary