Gynecology - 5 Mark Answers
1. Pelvic Inflammatory Disease (PID)
Etiology: Ascending polymicrobial infection from the endocervix to the upper genital tract. Primary organisms: Neisseria gonorrhoeae, Chlamydia trachomatis (~35% of cases), Mycoplasma genitalium, plus endogenous anaerobes/aerobes from the vagina (Bacteroides, Peptostreptococcus, streptococci, E. coli). Risk factors: multiple partners, young age, IUD insertion, vaginal douching, prior PID, instrumentation (D&C, HSG).
Clinical features: Bilateral lower abdominal/pelvic pain worsened by menses or coitus, abnormal vaginal discharge, fever, dyspareunia, intermenstrual bleeding. Exam shows cervical motion tenderness, adnexal tenderness, and mucopurulent cervicitis - Fitz-Hugh-Curtis (perihepatic adhesions) causes right upper quadrant pain in some.
Diagnosis: Largely clinical - CDC minimum criteria (uterine/adnexal/cervical motion tenderness) with no other cause identified is sufficient to start empiric treatment. Additional criteria (fever >38°C, leukocytosis, raised ESR/CRP, positive NAAT for gonorrhea/chlamydia) raise specificity. Definitive criteria: endometrial biopsy showing endometritis, TVS/CT showing tubo-ovarian complex, or laparoscopic visualization of salpingitis. Laparoscopy confirms the clinical diagnosis in only about 70% of cases (Goldman-Cecil Medicine, p. 1497).
Management: Outpatient regimen (mild-moderate disease): ceftriaxone IM single dose + doxycycline 100 mg BD x 14 days +/- metronidazole (for anaerobic/BV coverage). Indications for admission: pregnancy, tubo-ovarian abscess, failure of/intolerance to oral therapy, surgical emergency not excluded (e.g., appendicitis), severe illness/inability to tolerate oral intake. Inpatient parenteral options: cefoxitin/cefotetan + doxycycline, or clindamycin + gentamicin. IUD, if present, should be removed if no clinical improvement. Sexual partners must be evaluated and treated - Berek & Novak's Gynecology, p. 819.
2. Tubo-Ovarian Abscess (TOA)
Diagnosis: An end-stage complication of PID where inflammation causes agglutination of tube, ovary and adjacent bowel into a palpable adnexal mass. Suspected clinically when a PID patient has a tender adnexal/pelvic mass; confirmed by transvaginal ultrasound or CT showing a complex, thick-walled, multiloculated cystic mass with internal debris. Rupture presents as an acute abdomen with peritonitis and is a surgical emergency.
Management: About 75% respond to IV broad-spectrum antibiotics alone (e.g., cefoxitin/clindamycin + gentamicin, or a cephalosporin + doxycycline + metronidazole) continued until clinical improvement, then oral therapy to complete 14 days. Failure to improve within 48-72 hours warrants drainage - image-guided (ultrasound/CT-guided percutaneous or transvaginal/colpotomy) drainage is preferred first-line and succeeds in up to 90% of antibiotic failures. Laparoscopy or laparotomy (with abscess drainage +/- salpingo-oophorectomy) is reserved for ruptured abscess, peritonitis, or failure of conservative/percutaneous measures - Berek & Novak's Gynecology, p. 819.
3. Hormone Replacement Therapy (HRT)
Indications: Moderate-severe vasomotor symptoms (hot flashes, night sweats), genitourinary syndrome of menopause, premature ovarian insufficiency/surgical menopause (until natural age of menopause), and prevention of osteoporosis in younger postmenopausal women who cannot tolerate other agents.
Contraindications: Absolute - undiagnosed abnormal vaginal bleeding, known/suspected breast or estrogen-dependent cancer, active or past VTE/stroke/MI, active liver disease, pregnancy. Relative - migraine with aura, uncontrolled hypertension, gallbladder disease, high triglycerides.
Benefits: Effective relief of vasomotor and urogenital symptoms, improved bone mineral density and reduced fracture risk (Bailey & Love's Short Practice of Surgery, p. 6884), improved sleep and quality of life, possible reduction in colorectal cancer risk.
Adverse effects: Increased risk of venous thromboembolism and stroke (higher with oral vs transdermal routes), increased breast cancer risk with prolonged combined estrogen-progestin use, increased risk of gallbladder disease, and endometrial hyperplasia/cancer risk with unopposed estrogen in a woman with an intact uterus (mitigated by adding a progestin). Risk-benefit is most favorable when started within 10 years of menopause/before age 60 ("timing hypothesis").
4. Medical Management of AUB Using Hormonal Therapy
Choice depends on the FIGO PALM-COEIN cause, patient age, and desire for fertility/contraception:
- Combined oral contraceptives (estrogen + progestin): First-line for ovulatory AUB; regulate cycles and reduce flow by stabilizing the endometrium - "the estrogen stops the bleeding, and the progestin stabilizes the endometrium" (Tintinalli's Emergency Medicine, p. 1919).
- Progestins: Cyclic oral progestin (e.g., norethisterone/medroxyprogesterone) for 21-day regimens in anovulatory bleeding; continuous progestin or depot medroxyprogesterone acetate for women who cannot take estrogen.
- Levonorgestrel-releasing IUS (LNG-IUS): Highly effective, reduces menstrual blood loss by up to 90%, good long-term option, avoided if uterine cavity is grossly distorted or active pelvic infection is present.
- Tranexamic acid and NSAIDs: Non-hormonal adjuncts, useful when hormonal therapy is contraindicated or as add-on.
- Danazol and GnRH analogues: Reserved for short-term use or as a bridge to surgery given side-effect profile (androgenic effects with danazol; hypoestrogenic effects with GnRH agonists limiting use beyond 6 months without add-back therapy).
Acute heavy bleeding can be managed with high-dose IV/oral estrogen followed by a progestin-containing regimen to stabilize the endometrium (ACOG committee opinion approach).
5. MRKH Syndrome (Mayer-Rokitansky-Kuster-Hauser)
Congenital anomaly due to failure of Mullerian duct development, causing vaginal agenesis with variable uterine development (absent or rudimentary/non-cavitated uterus) in a phenotypically and genetically normal female - karyotype 46,XX with normal ovarian function and secondary sexual characteristics. Accounts for approximately 10-15% of primary amenorrhea (Berek & Novak's Gynecology, p. 2968). Often associated with renal (unilateral agenesis, ectopic/horseshoe kidney), skeletal (vertebral anomalies), and auditory abnormalities.
Clinical features: Primary amenorrhea in a girl with normal breast/pubic hair development, normal external genitalia but a blind vaginal pouch or dimple, cyclical pelvic pain if functioning uterine remnants are present.
Diagnosis: Clinical exam plus pelvic ultrasound/MRI (absent uterus/vagina with normal ovaries), karyotype (46,XX) to exclude androgen insensitivity syndrome, and renal ultrasound/spine imaging to detect associated anomalies.
Management: Non-surgical vaginal dilation (Frank/Ingram technique) is first-line for creating a neovagina; surgical options (McIndoe vaginoplasty using a skin graft, Vecchietti procedure, or bowel vaginoplasty) are reserved for dilation failure. Fertility is achieved through gestational surrogacy or emerging uterus transplantation; psychological counseling is essential given the impact on identity and fertility.
6. Turner Syndrome
Genetics: Results from complete or partial monosomy of the X chromosome. About 57% are 45,X; the remainder have structural X abnormalities (isochromosome, ring, deletion) or mosaicism (e.g., 45,X/46,XX). Mosaics with Y chromosome material carry increased gonadoblastoma risk (Robbins & Kumar Basic Pathology, p. 3937-3947).
Clinical features: Short stature, webbed neck/neck webbing from fetal lymphedema, low posterior hairline, cubitus valgus, shield-shaped chest with widely spaced nipples, lymphedema of hands/feet. Streak gonads lead to primary amenorrhea and infertility with minimal breast/pubic hair development. Associated congenital defects: bicuspid aortic valve, coarctation of aorta (leading cause of childhood death), horseshoe kidney. Increased risk of autoimmune hypothyroidism (up to 50%), autoimmune disease, and extragonadal germ cell tumors.
Diagnosis: Karyotype analysis is confirmatory. Suspected clinically by short stature plus primary amenorrhea; hormone profile shows elevated FSH/LH with low estradiol (hypergonadotropic hypogonadism). Prenatal detection possible via cystic hygroma on ultrasound or cell-free fetal DNA.
Management: Growth hormone therapy in childhood to improve final height; estrogen replacement (low dose, initiated around expected puberty age) followed by combined estrogen-progestin therapy to induce secondary sexual characteristics and maintain bone health; regular cardiac (echo for coarctation/bicuspid valve), renal, thyroid, and hearing screening; fertility options via donor oocyte and assisted reproduction; psychosocial support.
7. Indications and Steps for Myomectomy
Indications: Symptomatic fibroids (heavy menstrual bleeding, pelvic pressure/pain, bulk symptoms) in women who wish to retain the uterus or preserve/improve fertility; submucosal or intramural fibroids causing infertility or recurrent pregnancy loss; failed medical management; large or rapidly growing fibroids where malignancy cannot be excluded on imaging alone (with caution regarding rare leiomyosarcoma).
Approach selection: Hysteroscopic myomectomy for submucosal fibroids (FIGO type 0-2), laparoscopic (or robotic-assisted) myomectomy for suitable intramural/subserosal fibroids, and open (laparotomy) myomectomy for large, multiple, or deeply intramural fibroids.
Steps (abdominal/laparoscopic myomectomy):
- Preoperative optimization - correct anemia, consider GnRH agonist to shrink fibroid/reduce vascularity if very large.
- Hemostatic measures before incision - dilute vasopressin injection into the myometrium, or a tourniquet around the uterine vessels/infundibulopelvic ligaments, to minimize blood loss.
- A transverse (or vertical) incision is made over the most prominent/accessible fibroid, oriented to allow removal of multiple fibroids through a single incision where possible.
- Enucleation - the fibroid is grasped and dissected free from the surrounding pseudocapsule using traction and countertraction, sharp and blunt dissection.
- Hemostasis of the fibroid bed is secured with electrocautery or suture ligation of bleeding points.
- Closure of the myometrial defect in layers (deep myometrium, superficial myometrium, serosa) to obliterate dead space and ensure a strong scar for future pregnancy.
- For laparoscopic cases, morcellation of the fibroid is performed for extraction through the port sites; adhesion barriers may be applied over the suture line.
- Postoperative counseling on future pregnancy - a well-closed myometrial defect after myomectomy generally permits vaginal delivery, but a deep cavity-entering incision or multiple fibroid beds often prompts advice for elective cesarean section - Berek & Novak's Gynecology, p. 1295 and p. 93-103.