OBGYN Flashcards
At what week can US detect pregnancy?
US can detect pregnancy at 6 weeks.
What is the B HCG level at which a gestational sac can be seen in transvaginal US?
Gestational sac seen in transvaginal US with B HCG > 1,500.
Fetal pole: B HCG 6,000
Classification of spontaneous abortions
Missed: 1st trimester bleeding, closed os, sac on ultrasound, no heartbeat
Threatened: 1st trimester bleeding, heartbeat
Incomplete: tissue protrudes through os
What are the leading diagnoses for a premenopausal female patient with pelvic pain?
1 ectopic pregnancy, #2 hemorrhagic ovarian cyst, #3 PID, #4 appendicitis, #5 adnexal torsion.
Mittelschmerz: rupture of Graafian follicle, pain that can be confused with appendicitis; 14 days after 1st day of menses
What is the purpose of ovarian cystectomy?
Removes mass and preserves ovary; used for benign conditions or if diagnosis is uncertain.
When is salpingo-oophorectomy used?
Used for cancer or non-viable ovarian tissue after torsion.
What indicates a strongly suspected ectopic pregnancy?
If no sac is seen and BHCG is > 3000.
MC site: ampullary portion of Fallopian tubes
What is the treatment for stable ectopic pregnancy?
If stable, treat with MTX (methotrexate).
What is the treatment for unstable ectopic pregnancy?
If unstable, go to OR; unruptured and stable - salpingotomy- evacuate hematoma, repair tube VS just methotrexate; ruptured or unstable - salpingectomy (remove fallopian tube)
What are the contraindications to MTX in ectopic pregnancy?
BHCG > 5,000.
What should be done for a female presenting with pelvic pain?
Start with US with Doppler first; will see absent blood flow to ovary in Adnexal (ovarian) torsion.
Get a qualitative BHCG first, if positive (think ectopic pregnancy) then get quantitative
What is the most common cause of adnexal torsion?
MCC by a tumor in the ovary; presence of adnexal mass should raise suspicion of torsion.
What is the treatment for a necrotic ovary due to torsion?
If necrotic, perform salpingo-oophorectomy.
Always check to see if ovary recovers try your best to preserve ovary
What are the risk factors for tubo-ovarian abscess?
Previous PID, IUD in place.
How is a tubo-ovarian abscess diagnosed?
Cervical motion tenderness and adnexal mass on exam.
- Get BHCG to rule out ectopic
- US for Dx: if Abscess is > 6 cm requires percutaneous drainage
What is the treatment for a tubo-ovarian abscess if stable and non-ruptured?
IR drainage if > 6 cm; doxycycline and ceftriaxone for antibiotics.
Only operate if ruptured or life threatening or failed drainage; just drain abscess, no drains, NO OOPHERECTOMY
What is the most common site for endometriosis?
MC site: ovaries.
Endometriosis – blue mass. Tx: OCP, danazol
What is the most common type of vaginal cancer?
MC type: squamous.
XRT used for most cancers of vagina
What can Diethylstilbestrol (DES) cause?
Can cause clear cell carcinoma.
What is the treatment for Botryoides rhabdomyosarcoma in young girls?
Grape-like mass
Treatment: resect.
What is the treatment for vulvar cancer?
-MC SCC. Goes to inguinal nodes
-Stage 1 (< 2 cm): WLE (2 cm margin) ipsilateral inguinal and femoral node dissection.
-Stage 2 (> 2 cm): Modified radical vulvectomy; remove bilateral labia major, minora, clitoris, with bilateral inguinal/femoral node dissection. Postop XRT if close margins (< 1 cm)
-Paget’s, VIN III or higher, carcinoma in situ - all premalignant; treatment: WLE (0.5-1 cm margins), laser ablation, or topical imiquimod