Obstetrics and Gynecology

A 32-year-old primigravid woman at 8 weeks gestation presents to the clinic after noticing a firm, painless lump in her right breast. Examination reveals a 4-cm, hard, immobile mass in the upper outer quadrant with clinically positive axillary lymphadenopathy. She strongly desires to continue the pregnancy and wants to pursue comprehensive treatment to maximize her survival. Assuming the diagnostic workup ultimately confirms invasive ductal carcinoma, arrange the following management steps in the strictly indicated chronological order for this specific patient, from initial evaluation through to postpartum care.

A 24-year-old woman, gravida 1, para 1, comes to the emergency department 4 weeks postpartum due to a 3-day history of a painful, swollen right breast. She is exclusively breastfeeding her infant. She reports subjective fevers, chills, and fatigue. Her temperature is $38.8^\circ\text{C}$ ($101.8^\circ\text{F}$), blood pressure is $110/70\text{ mmHg}$, and pulse is $102/\text{min}$. Physical examination of the right breast reveals a 4-cm area of marked erythema, induration, and tenderness in the lower outer quadrant. Careful palpation of this area reveals a distinct, centrally fluctuant mass. There is no overlying skin retraction or purulent nipple discharge. Which of the following is the most appropriate next step in management?

Match each clinical presentation of a breast disorder with its most likely corresponding histopathologic finding on biopsy.

Match each clinical presentation with the most likely underlying breast pathology.

A 42-year-old woman comes to the general surgery clinic for evaluation of a left breast mass that she noticed 3 months ago. She reports that the lump has been growing rapidly during this time. The patient has no personal or family history of breast or ovarian cancer. Physical examination reveals a 5.5-cm, firm, mobile, well-circumscribed mass in the upper outer quadrant of the left breast. The overlying skin appears stretched and shiny with prominent superficial veins, but there is no skin dimpling, nipple retraction, or erythema. Axillary examination shows no palpable lymphadenopathy. Diagnostic mammography and targeted ultrasound demonstrate a large, lobulated, hypoechoic solid mass with internal cleft-like cystic spaces. An image-guided core needle biopsy is performed. Histopathology reveals a cellular fibroepithelial lesion with leaf-like architectural patterns and a hypercellular stroma with moderate atypia, consistent with a borderline phyllodes tumor. Which of the following is the most appropriate next step in management?

A 35-year-old woman presents to her primary care physician reporting intermittent, reddish-brown discharge from her right nipple over the past 3 weeks. She has noticed small stains on her bra but denies any localized breast pain, overlying skin changes, or fever. Her menstrual cycles are regular, and she takes no daily medications. She has no family history of breast or ovarian cancer. Vital signs are within normal limits. On physical examination, the breasts are symmetric with no skin dimpling, erythema, or nipple retraction. Palpation reveals no discrete masses or axillary lymphadenopathy. Gentle pressure around the right areola elicits a single drop of bloody discharge from a single duct. Which of the following is the most appropriate initial step in the evaluation of this patient?

Match each clinical and histopathological description of a breast lesion with its most appropriate definitive management or critical diagnostic association.

A 45-year-old woman presents to the clinic for evaluation of abdominal pain and continuous vaginal discharge. She underwent a total laparoscopic hysterectomy for symptomatic uterine fibroids 14 days ago. Her initial postoperative course was uncomplicated, and she was discharged home on the first postoperative day. Over the past 3 days, she has developed progressive right-sided flank pain, mild nausea, and a continuous, clear, watery vaginal discharge. She reports no dysuria, urgency, or frequency, and she is voiding normally in typical volumes. Her temperature is 38.0°C (100.4°F), blood pressure is 120/78 mm Hg, and pulse is 88/min. Physical examination reveals right costovertebral angle tenderness. The abdomen is soft and non-distended. Speculum examination shows clear fluid pooling in the vaginal vault. A vaginal tampon is placed, and 300 mL of normal saline mixed with methylene blue dye is instilled into the bladder via a Foley catheter. The patient ambulates for 15 minutes, after which the tampon is removed. The tampon is saturated with clear fluid but has no blue staining. Which of the following is the most likely etiology of this patient's current presentation?

A 52-year-old woman undergoes a routine screening mammogram, which reveals a new 1.5-cm spiculated density in the upper outer quadrant of the right breast. She is completely asymptomatic and her past medical history is unremarkable. Arrange the following subsequent steps in her evaluation and management in the most appropriate chronological sequence.

A 49-year-old woman is evaluated in the surgical oncology clinic due to rapid changes in her right breast over the past five weeks. She was initially treated at an urgent care clinic with a two-week course of oral clindamycin for presumed cellulitis, but the condition has progressively worsened. She has no personal or family history of breast malignancy and previously had normal screening mammograms. Vital signs are normal. Examination of the right breast reveals diffuse enlargement, marked erythema, and increased warmth. The skin demonstrates prominent pitting edema encompassing most of the breast surface. Palpation reveals diffuse, firm tissue thickening without a discrete localized lump. Hard, enlarged lymph nodes are palpable in the right axillary region.

Arrange the following clinical interventions in the most appropriate chronological order for the diagnosis, staging, and definitive management of this patient.

A 46-year-old woman comes to the clinic to discuss the results of a recent breast biopsy. Two weeks ago, a routine screening mammogram revealed a new, 8-mm cluster of pleomorphic microcalcifications in the upper outer quadrant of her right breast. A stereotactic core needle biopsy was performed. The pathology report indicates atypical ductal hyperplasia and fibrocystic changes containing microcalcifications. The patient has no history of breast disease. Menarche was at age 12, and she is nulliparous. Her mother was diagnosed with breast cancer at age 55. Vital signs are within normal limits. Physical examination reveals symmetrical breasts with no palpable masses, skin changes, nipple discharge, or axillary lymphadenopathy. Which of the following is the most appropriate next step in management?

During a routine prenatal visit at 14 weeks gestation, a 34-year-old G2P1 woman mentions a lump in her right breast that she noticed two weeks ago. The patient has no personal or family history of breast cancer. She reports no fever, chills, or nipple discharge. Vital signs are within normal limits. Physical examination reveals a 3-cm, firm, non-tender, and relatively immobile mass in the upper outer quadrant of the right breast. There is no overlying skin erythema, dimpling, or axillary lymphadenopathy. Which of the following is the most appropriate next step in the evaluation of this patient's breast mass?

Match each postoperative clinical presentation with the most likely specific surgical complication or underlying pathophysiology.

Match each clinical presentation of early-onset or familial breast cancer with the most likely underlying genetic mutation.

A 34-year-old woman, G2P1, at 18 weeks gestation comes to the physician after discovering a lump in her left breast. She first noticed the lump a month ago and feels it has slightly increased in size. Her medical history is unremarkable, and she has no family history of breast cancer. On physical examination, her breasts are symmetrically enlarged and diffusely nodular. There is a 3-cm, firm, mobile, well-circumscribed, non-tender mass in the left upper outer quadrant. No skin changes, dimpling, or nipple discharge are present. Axillary lymph nodes are not palpable. Which of the following is the most appropriate next step in management?

A variety of breast disorders present with distinct clinical, imaging, and historical features that dictate their diagnosis. Match each clinical vignette described below with its most accurate characteristic histopathological finding or pathophysiologic mechanism.

A 27-year-old woman presents to the outpatient clinic with a 3-day history of progressively worsening right-sided breast pain, swelling, and fever. She delivered her first child via uncomplicated cesarean delivery 4 weeks ago and has been exclusively breastfeeding. Her temperature is 38.6°C (101.5°F), blood pressure is 112/72 mmHg, and pulse is 98/min. Physical examination of the right breast reveals a 5-cm area of marked erythema, warmth, and induration in the upper outer quadrant. Careful palpation over this area reveals a distinct, tender, fluctuant mass. There is no overlying skin necrosis, and no axillary lymphadenopathy is appreciated. Pelvic examination is unremarkable, and the cesarean incision site is clean, dry, and well-healed. Which of the following is the most appropriate next step in management?

A 54-year-old postmenopausal woman visits her physician after discovering a firm lump in her right breast. Clinical examination confirms a 2.5-cm, non-tender, relatively fixed mass in the right upper outer quadrant without palpable axillary lymphadenopathy. There is no overlying skin dimpling or nipple retraction. Arrange the following clinical steps in the most appropriate chronological sequence for the standard evaluation and definitive management of this patient's newly discovered breast mass.

An otherwise healthy 42-year-old patient is evaluated in the outpatient setting for a new-onset, continuous, clear vaginal leakage. Two weeks prior, she underwent a complicated total laparoscopic hysterectomy for severe endometriosis involving dense pelvic adhesions. Her vital signs are within normal limits. A pelvic examination reveals clear fluid pooling in the vaginal vault, while the vaginal cuff appears intact and is healing appropriately. The physician suspects a postoperative urinary tract fistula. Arrange the following diagnostic and management steps in the most appropriate chronological sequence for this patient.

A 45-year-old woman is evaluated in the surgical clinic for a rapidly enlarging mass in her right breast. She first noticed a small lump approximately 4 months ago, but it has doubled in size over the past 4 weeks. She reports no pain, fever, or nipple discharge. Her medical history is unremarkable, and she takes no medications. On physical examination, the breasts appear asymmetric. A 7-cm, firm, smooth, and mobile mass is palpable in the upper half of the right breast. The overlying skin is stretched and shiny with prominent superficial veins, but there is no erythema, dimpling, or nipple retraction. No axillary or supraclavicular lymphadenopathy is appreciated. Breast ultrasonography demonstrates a large, solid, hypoechoic mass with internal cleft-like cystic spaces. A subsequent core needle biopsy reveals a biphasic proliferation consisting of benign epithelial elements and a hypercellular stroma with leaf-like architectural patterns. There are 6 mitoses per 10 high-power fields and moderate stromal atypia. Which of the following is the most appropriate next step in the management of this patient?