Obstetrics and Gynecology

A 40-year-old woman asks about her future risk of developing breast cancer after undergoing a core needle biopsy for a mammographic abnormality. Arrange the following potential histopathologic biopsy results in order from the LOWEST to the HIGHEST risk for the subsequent development of invasive breast cancer.

Review the following patient vignettes detailing specific clinical histories and gynecologic neoplasms. Pair each patient presentation with its most likely underlying germline genetic abnormality.

An otherwise healthy 42-year-old female patient is evaluated in the urogynecology clinic for bothersome urinary leakage. She notes that the involuntary loss of urine occurs exclusively during physical exertion, specifically when she jogs, coughs, or sneezes. She experiences no dysuria, nocturia, or sudden overwhelming urges to urinate. A recently completed voiding diary confirms leakage tied entirely to physical activity. During the physical examination, a cough stress test demonstrates immediate, brief fluid loss from the urethra. The patient is highly motivated to improve her symptoms and asks to discuss all available treatment modalities. She prefers a stepwise approach, starting with the safest, non-invasive therapies before considering any surgical interventions.

Arrange the following management strategies for this patient's condition in the standard clinical sequence, escalating from initial first-line therapy to definitive surgical options for complex cases.

Match each clinical vignette describing a hypertensive disorder of pregnancy with its most appropriate diagnosis.

A physician is called to the bedside to evaluate a 41-year-old female patient on her first postoperative night following a vaginal hysterectomy for uterine prolapse. She complains of new-onset, severe lower abdominal cramping and an intense feeling of rectal pressure. She also reports feeling dizzy when sitting up. Vital signs show a temperature of 37.4°C (99.3°F), blood pressure of 96/58 mm Hg, and a heart rate of 115/min. Her abdomen is soft with mild suprapubic tenderness. Pelvic examination reveals intact vaginal sutures, but there is a 6-cm, tense, purple-tinged, boggy mass protruding into the vaginal vault. Laboratory evaluation reveals a hemoglobin concentration of 7.8 g/dL (baseline was 13.1 g/dL preoperatively). Which of the following is the most likely diagnosis?

A 32-year-old G2P2 at $39$ weeks gestation experiences significant vaginal bleeding immediately after the vaginal delivery of a $4100$ g neonate. The intrapartum fetal heart rate tracing was Category I. The placenta delivers spontaneously and appears intact. On examination, her blood pressure is $90/55$ mmHg and heart rate is $115$/min. The uterus is soft, boggy, and palpated above the umbilicus. Arrange the following interventions in the most appropriate sequential order for the management of this patient's postpartum hemorrhage, progressing from the initial step to the final definitive treatment.

A $32$-year-old nulliparous woman comes to the office due to a $10$-month history of amenorrhea and an inability to conceive. She and her partner have been having regular, unprotected intercourse for $1.5$ years. Her previously regular $28$-day menstrual cycles became increasingly irregular two years ago and ceased entirely $10$ months ago. The patient reports a recent onset of daily headaches, worsening fatigue, a $5$-kg ($11$-lb) weight gain, and cold intolerance. Over the past few months, she has also noticed a bilateral, non-bloody, milky nipple discharge. She takes no medications. Vital signs are within normal limits. Physical examination reveals delayed relaxation of deep tendon reflexes and bilateral bitemporal hemianopsia on visual field testing.

Laboratory results:
Serum $\beta$-hCG: Negative
Prolactin: $65$ ng/mL (Normal: $4$ - $23$ ng/mL)
Thyroid-stimulating hormone (TSH): $0.2$ $\mu$ U/mL (Normal: $0.4$ - $4.0$ $\mu$ U/mL)
Free T4: $0.5$ ng/dL (Normal: $0.9$ - $1.7$ ng/dL)
Follicle-stimulating hormone (FSH): $2$ mIU/mL (Normal: $4$ - $30$ mIU/mL)
Luteinizing hormone (LH): $1.5$ mIU/mL (Normal: $4$ - $30$ mIU/mL)

Which of the following is the most likely mechanism underlying this patient's hyperprolactinemia?

A 41-year-old G3P3 woman comes to the urogynecology clinic complaining of involuntary urine leakage for the past year. The leakage occurs almost exclusively when she plays tennis, coughs, or sneezes. She has no pain with urination, no sudden urges to void, and no nocturia. She has been performing pelvic floor muscle exercises with a specialized physical therapist for the last 6 months but has seen minimal improvement. The patient is frustrated and requests a definitive surgical solution. She has regular menstrual cycles, and her past medical history is unremarkable. On pelvic examination, the vaginal mucosa is pink and well-rugated. With a full bladder, a cough stress test demonstrates immediate, synchronous leakage of urine from the urethral meatus. A cotton swab test reveals a resting angle of $10^\circ$ that increases to $45^\circ$ with Valsalva maneuver. There is no evidence of pelvic organ prolapse. Urinalysis is negative for nitrites and leukocyte esterase. Post-void residual volume is $25$ mL. Which of the following is the most appropriate next step in management for this patient?

Immediately following the vaginal delivery of a 3900-g neonate and the placenta, a 26-year-old primiparous patient experiences a sudden, massive gush of vaginal bleeding accompanied by severe lower abdominal pain. The delivering clinician notes that the umbilical cord was subjected to strong traction during the third stage of labor. On physical examination, a smooth, round, beefy-red mass is protruding from the vaginal introitus. The uterine fundus cannot be palpated transabdominally. The patient is pale, with a blood pressure of 78/45 mm Hg and a heart rate of 142/min. Intravenous access is rapidly secured and aggressive fluid resuscitation is begun. Arrange the following subsequent management steps in the most appropriate chronological sequence for this patient's condition.

Correlate the clinical presentations of the following patients, who are experiencing ovulatory dysfunction and infertility, with their expected serologic hormone profiles.

A 32-year-old G3P3 woman experiences severe vaginal bleeding immediately following the vaginal delivery of a 4,300 g neonate. Her pulse is 122/min, and blood pressure is 85/50 mm Hg. Abdominal examination reveals a soft, poorly contracted uterus palpated above the umbilicus. Two large-bore intravenous lines are placed, and fluid resuscitation is initiated.

Arrange the following management steps for this patient's condition in the correct sequential order, from the most appropriate initial intervention to the definitive final procedure for refractory hemorrhage.

A 34-year-old G4P3 patient at 37 weeks of gestation is brought to the emergency department by her husband due to sudden-onset, severe, and continuous lower abdominal pain accompanied by dark red vaginal bleeding. Her previous pregnancies were delivered vaginally at term without complications. She has a history of chronic hypertension. Her current blood pressure is 165/100 mm Hg, pulse is 115/min, and respirations are 20/min. Physical examination reveals a rigid, hypertonic, and diffusely tender uterus. Speculum examination confirms a moderate amount of dark blood in the vaginal vault with no active cervical lesions. The cervix is 2 cm dilated and 50% effaced. Fetal heart rate monitoring demonstrates a baseline of 90/min, minimal variability, and recurrent late decelerations. Which of the following is the most appropriate next step in management?

Match each clinical presentation occurring in the third trimester to the most likely obstetric or pregnancy-related diagnosis.

A 27-year-old woman presents to the gynecology clinic due to the absence of menses for nine months accompanied by spontaneous milky bilateral nipple discharge. She and her husband are hoping to have a child and have been having regular, unprotected intercourse for a year. A point-of-care urine pregnancy test is negative.

Arrange the following steps in the most appropriate chronological order for the evaluation and management of this patient to facilitate a safe pregnancy.

A 34-year-old woman comes to the office seeking evaluation for infertility. She and her husband have been having unprotected intercourse for the past $14$ months. Her only pregnancy resulted in a spontaneous abortion at $9$ weeks of gestation $18$ months ago, which was complicated by retained products of conception requiring a suction dilation and curettage. Prior to this event, her menstrual cycles occurred at regular 28-day intervals. Since the procedure, she has had complete cessation of menses. She reports no cyclical pelvic pain, headaches, visual changes, or galactorrhea. Her temperature is $36.8^\circ$ C ($98.2^\circ$ F), blood pressure is $115/75$ mm Hg, pulse is $72$/min, and BMI is $29$ kg/m $^2$. She has mild facial acne that she has had since her teenage years. Pelvic examination reveals a normal-appearing cervix with no adnexal masses.

Laboratory testing shows:
$\beta$-hCG: $< 5$ mIU/mL
Thyroid-stimulating hormone: $1.8$ $\mu$ U/mL
Prolactin: $14$ ng/mL
Follicle-stimulating hormone: $7$ mIU/mL
Luteinizing hormone: $6$ mIU/mL
Estradiol: $80$ pg/mL

Following a 10-day course of oral medroxyprogesterone acetate, the patient experiences no withdrawal bleeding. Which of the following is the most likely underlying cause of this patient's current condition?

Match each obstetric complication occurring in the third trimester with the clinical and laboratory vignette that best describes its classic presentation.

A reproductive endocrinology clinic is evaluating four different women, all of whom present with secondary amenorrhea and an inability to conceive. Based on the provided clinical presentations and initial serum laboratory findings, match each patient's profile with the most likely underlying diagnosis and pathophysiologic mechanism.

A university student, aged 21, visits the campus health center complaining of highly irregular menstrual periods and worsening acne. She reports menstruating only three times in the past year. Additionally, she has been troubled by thick, dark hair growing on her chin, chest, and lower abdomen, which she removes frequently. The patient takes no medications and is otherwise healthy. Her blood pressure is $112/72 \text{ mm Hg}$, and her body mass index is $23.5 \text{ kg/m}^2$. Pelvic examination reveals normal female external genitalia without clitoromegaly. A serum pregnancy test is negative.

Laboratory evaluation shows the following results:
Thyroid-stimulating hormone: $1.9 \text{ \mu U/mL}$
Prolactin: $14 \text{ ng/mL}$
Total testosterone: $78 \text{ ng/dL}$ (normal: $15$–$70 \text{ ng/dL}$)
Dehydroepiandrosterone sulfate: $310 \text{ \mu g/dL}$ (normal: $35$–$430 \text{ \mu g/dL}$)
17-hydroxyprogesterone (measured at 8:00 AM): $3,800 \text{ ng/dL}$ (normal: $< 200 \text{ ng/dL}$)

Which of the following is the most likely underlying cause of this patient's clinical presentation?

A 34-year-old G1P0 woman at 35 weeks gestation is admitted to the labor and delivery unit for induction of labor due to preeclampsia with severe features. Upon admission, her blood pressure is 168/112 mm Hg, and laboratory studies reveal a serum creatinine of 1.1 mg/dL, platelet count of 110,000/mm³, and elevated liver transaminases. An intravenous infusion of magnesium sulfate is initiated for seizure prophylaxis, alongside continuous oxytocin for labor induction. A bolus of isotonic intravenous fluids is administered prior to initiating epidural anesthesia.

Fourteen hours later, the patient reports a sudden onset of severe shortness of breath and a cough productive of frothy pink sputum. Her temperature is 37.0°C (98.6°F), blood pressure is 160/105 mm Hg, heart rate is 112/min, and respiratory rate is 28/min. Arterial blood gas analysis on room air reveals a pH of 7.44, PaCO2 of 28 mm Hg, and PaO2 of 55 mm Hg. Physical examination reveals bilateral pitting edema of the lower extremities and diffuse crackles auscultated over the lower lung fields bilaterally. Deep tendon reflexes are 2+ and symmetric. The fetal heart rate tracing demonstrates a baseline of 145/min with moderate variability and no decelerations.

Which of the following is the most appropriate next step in the management of this patient's acute symptoms?

A reproductive endocrinology clinic is evaluating four adolescent patients who each present with primary amenorrhea. Based on the findings from physical examinations, laboratory testing, and karyotype analysis, match each patient's clinical profile with the most likely diagnosis.