Obstetrics and Gynecology

A 42-year-old premenopausal woman comes to the outpatient clinic due to a painful lump in her right breast. She first noticed the swelling 10 days ago, and the localized discomfort has been persistent. Her menstrual cycle is regular, and her last menstrual period was 14 days ago. She has no personal or family history of breast disease. On physical examination, her temperature is 37.0°C (98.6°F). A 3.5-cm, tense, mobile, and exquisitely tender mass is palpated in the lower outer quadrant of the right breast. The overlying skin is intact with no erythema, dimpling, or nipple retraction. There is no palpable axillary lymphadenopathy. Diagnostic mammography reveals a radiodense mass with smooth margins. Subsequent breast ultrasonography shows a 3.5-cm, well-circumscribed, anechoic structure with a thin wall and prominent posterior acoustic enhancement. Which of the following is the most appropriate next step in management?

An adult patient with severe pelvic endometriosis is undergoing an elective total abdominal hysterectomy. While mobilizing the uterus from dense pelvic adhesions, sudden, bright red, pulsatile hemorrhage fills the deep pelvis, entirely obscuring the surgical field. The monitoring equipment alarms as the systolic blood pressure drops precipitously to 65 mm Hg. Arrange the following surgical and resuscitative interventions in the most appropriate sequential order to manage this acute life-threatening complication.

Match each patient's clinical presentation with the underlying histopathologic or pathophysiologic finding most likely responsible for her condition.

A 33-year-old woman, currently 14 weeks pregnant, presents to her obstetrician to evaluate a new lump in her right breast. She detected the nodule two weeks ago while bathing. The patient denies any associated pain, fever, or nipple discharge. Her family history is notable for a maternal grandmother diagnosed with breast cancer at age 70. On physical examination, a 3.0-cm, firm, mobile, non-tender mass is palpated in the upper outer quadrant of the right breast. The overlying skin is intact without dimpling, retraction, or erythema. There is no palpable axillary or supraclavicular lymphadenopathy. Which of the following is the most appropriate initial step in the evaluation of this finding?

A 62-year-old woman undergoes a routine screening mammogram that reveals a new, highly suspicious 1.5-cm spiculated density with clustered microcalcifications in her left breast. She has no palpable masses or axillary lymphadenopathy on physical examination. Arrange the following interventions in the most appropriate chronological sequence for the evaluation and initial management of this patient's findings.

A $52$-year-old woman comes to the surgical clinic for evaluation of a newly discovered lump in her left breast. She first noticed the mass $2$ weeks ago. $6$ months prior, she underwent a bilateral reduction mammoplasty. She has no personal or family history of breast disease. On physical examination, there is a $3$-cm, firm, irregular mass in the lower outer quadrant of the left breast. The skin overlying the mass shows mild dimpling. There is no axillary lymphadenopathy. Diagnostic mammography reveals a localized area of increased density with coarse, irregular calcifications and spiculated margins. A core needle biopsy of the mass is performed. Which of the following is the most likely histopathologic finding in this patient's breast lesion?

A 59-year-old woman comes to the clinic due to a persistent, itchy rash on her right breast that has been present for the past 4 months. She initially thought it was dry skin and applied over-the-counter moisturizers and a low-potency topical hydrocortisone cream for several weeks, but the lesion has progressively worsened. On physical examination, there is an erythematous, sharply demarcated, scaling, and crusted plaque restricted to the right nipple and extending slightly onto the areola. The right nipple appears partially inverted. Palpation reveals no discrete underlying breast mass, and axillary lymph nodes are not palpable. Bilateral mammography performed today shows no distinct masses or suspicious microcalcifications. Which of the following is the most appropriate next step in management?

A 54-year-old postmenopausal woman presents to the physician's office after discovering a firm lump in her left breast three weeks ago. The patient has no history of breast trauma, nipple discharge, or skin dimpling. She experienced natural menopause at age 51. Her maternal aunt was diagnosed with breast cancer at age 68. Vital signs are within normal limits. Physical examination reveals a 2.5-cm, hard, irregular, and immobile mass in the upper outer quadrant of the left breast. There are no overlying skin changes, and no axillary or supraclavicular lymphadenopathy is appreciated.

Assume that subsequent evaluation confirms early-stage, estrogen receptor-positive, HER2-negative invasive ductal carcinoma, and the patient opts for breast-conserving management.

Arrange the following diagnostic and therapeutic steps in the most appropriate chronological order for this patient.

A 62-year-old woman is brought to the emergency department by her daughter due to severe, generalized abdominal pain and recurrent vomiting for the past 6 hours. She reports an inability to pass flatus since yesterday. Two days ago, the patient underwent a hysteroscopy and fractionated dilation and curettage for the evaluation of postmenopausal bleeding. The operative report notes that during the procedure, a uterine sound passed deeper than the expected uterine depth, raising suspicion for a uterine perforation. The procedure was aborted, and the patient was observed for 4 hours; she remained hemodynamically stable and was discharged home. Today, her temperature is 39.2°C (102.6°F), blood pressure is 86/52 mm Hg, pulse is 122/min, and respirations are 24/min. Physical examination reveals a rigid, distended abdomen with diffuse rebound tenderness and involuntary guarding. Bowel sounds are absent. Intravenous fluid resuscitation and broad-spectrum antibiotics are initiated. Which of the following is the most appropriate next step in management?

A 35-year-old woman is evaluated in the surgical ward 14 hours after undergoing an uncomplicated laparoscopic myomectomy for symptomatic uterine leiomyomata. She reports sudden-onset severe lightheadedness and expanding lower abdominal pain. Preoperative hemoglobin was 13.2 g/dL. Her temperature is 36.8°C (98.2°F), blood pressure is 78/45 mm Hg, pulse is 128/min, and respiratory rate is 22/min. Physical examination demonstrates pale conjunctivae and a visibly distended abdomen that is rigid and diffusely tender with involuntary guarding. The surgical incisions are intact with no active drainage. An immediate intravenous bolus of 1 liter of normal saline is administered, but her blood pressure only improves to 82/50 mm Hg. Which of the following is the most appropriate next step in management?

A 45-year-old woman is undergoing a complex total abdominal hysterectomy for severe, treatment-resistant endometriosis. During the dissection of the left infundibulopelvic ligament, the surgeon uses electrocautery to control unexpected bleeding near the pelvic sidewall. Shortly after, there is high clinical suspicion for a thermal injury to the left ureter. Arrange the following intraoperative steps in the most appropriate chronological order to evaluate and definitively manage this suspected complication.

A 39-year-old woman is evaluated in the emergency department for worsening lower abdominal pain and fever. Seven days ago, she underwent an uncomplicated total vaginal hysterectomy for symptomatic uterine leiomyomata. Over the past 48 hours, she has developed a throbbing, constant pain deep in her pelvis, accompanied by chills and mild nausea. She has not experienced vomiting, diarrhea, or dysuria. Her past medical history is unremarkable, and she takes no daily medications. Her temperature is 38.9°C (102.0°F), blood pressure is 118/74 mmHg, pulse is 104/min, and respirations are 16/min. Abdominal examination reveals mild suprapubic tenderness without rebound or involuntary guarding. Bowel sounds are normoactive. Speculum examination demonstrates an intact vaginal cuff with mild erythema. Bimanual pelvic examination reveals a 5-cm, exquisitely tender, fluctuant mass located just superior to the vaginal apex. Laboratory studies show a leukocyte count of 16,500/mm³. Which of the following is the most appropriate next step in management?

A variety of gynecologic procedures carry specific, well-described risks due to the anatomic relationships and physiologic changes involved. For each surgical intervention described below, select the complication or clinical presentation most uniquely associated with it.

A 41-year-old woman is evaluated on postoperative day 3 for diffuse abdominal pain, progressive abdominal distention, and nausea. She recently underwent an uncomplicated total laparoscopic hysterectomy for symptomatic leiomyomas and severe pelvic endometriosis. Her temperature is 38.3°C (100.9°F), pulse is 102/min, and blood pressure is 112/74 mm Hg. Physical examination shows a significantly distended abdomen with shifting dullness and diffuse tenderness to palpation. Bowel sounds are hypoactive. Her surgical incisions are clean and intact. The patient reports voiding small amounts of urine frequently since her indwelling urinary catheter was removed 48 hours ago. Laboratory studies show a leukocyte count of 14,500/mm³, a blood urea nitrogen of 46 mg/dL, and a serum creatinine of 2.8 mg/dL. Her preoperative serum creatinine was 0.7 mg/dL. Which of the following is the most appropriate next step in management?

A 48-year-old woman with a history of two prior cesarean deliveries is undergoing a total abdominal hysterectomy for severe symptomatic adenomyosis. While sharply dissecting the scarred vesicouterine reflection to mobilize the bladder, the surgeon notes a sudden pooling of clear fluid in the operative field. Careful inspection reveals an inadvertent 2.5-cm laceration at the dome of the bladder.

Arrange the following intraoperative and postoperative management steps in the most appropriate chronological sequence for this patient.

Match each gynecologic surgical procedure or step with the specific anatomic complication it is most likely to cause based on its anatomical location.

A 54-year-old woman presents to the emergency department with severe lower abdominal pain and a sensation of a "bulge" in her vagina. The symptoms started abruptly after an episode of severe coughing. She underwent a total laparoscopic hysterectomy for abnormal uterine bleeding 14 days ago. Her temperature is 37.2°C (99.0°F), blood pressure is 112/72 mm Hg, and pulse is 118/min. On pelvic examination, a 10-cm segment of small bowel is visible protruding through the vaginal introitus. The bowel appears pink and viable, but the patient is in significant distress.

Arrange the following management steps for this patient in the most appropriate chronological order.

A 26-year-old woman, gravida 2, para 1, is evaluated in the emergency department for progressive lower abdominal pain, severe chills, and a foul-smelling vaginal discharge. Her symptoms began yesterday and have rapidly worsened over the past 12 hours. Four days ago, she underwent an uncomplicated suction dilation and curettage for an elective pregnancy termination at 10 weeks gestation. Her temperature is 39.2°C (102.6°F), blood pressure is 98/60 mm Hg, pulse is 114/min, and respirations are 20/min. Abdominal examination shows diffuse lower abdominal tenderness with voluntary guarding. Pelvic examination reveals a patulous cervical os, copious purulent discharge pooling in the vaginal vault, and severe uterine tenderness on bimanual palpation. Which of the following is the most appropriate next step in management?

A 28-year-old female presents for a well-woman visit to discuss family planning. She was diagnosed with polycystic ovary syndrome (PCOS) three years ago, characterized by oligomenorrhea—with menses occurring every 3 to 5 months—and hirsutism. Her medical history is also significant for frequent headaches, which she describes as severe, throbbing pain preceded by scintillating scotomas. These headaches occur roughly once every two months, and she takes sumatriptan for abortive relief. Her body mass index is 34 kg/m². Vital signs show a blood pressure of 118/76 mm Hg and a heart rate of 76/min. Physical examination demonstrates thick, dark hair growth on her chin and upper lip. A urine pregnancy test is negative. She is in a long-term monogamous relationship, does not wish to conceive, and requests a reliable contraceptive that will simultaneously reduce her risk of developing endometrial hyperplasia.

Which of the following is the most appropriate management for this patient?

During routine prenatal visits, various maternal physiological adaptations can produce laboratory findings that mimic pathological states. Match each isolated clinical finding in an asymptomatic pregnant patient with the correct underlying physiological mechanism that explains the expected normal variation.