Breast Disorders

Match each clinical presentation of a breast disorder to the most appropriate initial diagnostic workup or management step.

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.

A 26-year-old woman, G1P0 at 14 weeks gestation, presents to the clinic after finding a lump in her right breast. She first noticed the lump one month ago, and it has not changed in size. She reports no nipple discharge, overlying skin changes, or breast pain. Family history is notable for a maternal aunt diagnosed with breast cancer at age 52. Vital signs are within normal limits. Physical examination reveals a 3.5-cm, firm, non-tender, fixed mass in the upper outer quadrant of the right breast. A firm 1.5-cm lymph node is palpable in the right axilla. Which of the following is the most appropriate next step in management?

A 48-year-old woman comes to the clinic due to a 3-week history of right breast swelling, redness, and heaviness. She is not pregnant and has not lactated in over 15 years. Two weeks ago, she was evaluated at an urgent care clinic for these symptoms, diagnosed with mastitis, and prescribed a 10-day course of oral cephalexin. She completed the antibiotics, but her symptoms have progressively worsened. Her temperature is 37.1°C (98.8°F). Physical examination of the right breast reveals diffuse erythema and significant edema over 60% of the breast surface. The skin has a thickened, pitted appearance resembling an orange peel. Palpation reveals generalized firmness without a discrete, fluctuant mass. There is palpable, firm right axillary lymphadenopathy. Which of the following is the most appropriate next step in management?

An evaluation is requested for a 38-year-old G2P2 woman presenting with progressive right breast enlargement and erythema over the past three weeks. She recently completed a 10-day course of cephalexin for a presumptive diagnosis of mastitis, but her symptoms have worsened. The patient is not pregnant and last breastfed 4 years ago. She has no personal or family history of cancer. Her temperature is 37.1°C (98.8°F), blood pressure is 122/78 mm Hg, and pulse is 76/min. Physical examination reveals a globally swollen, erythematous right breast with prominent skin dimpling and thickening over the dependent portion. A 5-cm firm, ill-defined area of induration is palpated deep to the areola. A 2-cm, hard, mobile lymph node is palpable in the right axilla. Arrange the following steps in the most appropriate sequential order for the diagnostic workup and management of this patient's most likely condition.

A 54-year-old postmenopausal woman comes to the clinic due to a 3-month history of an itchy, flaking rash on her left nipple and areola. She states that the rash initially began as a small red patch but has gradually spread and thickened. She applied an over-the-counter hydrocortisone cream twice daily for 4 weeks with no improvement. She has no personal or family history of breast cancer. On physical examination, there is a unilateral, well-demarcated, erythematous, scaly plaque confined to the left nipple-areolar complex with small areas of superficial crusting and ulceration. The nipple appears slightly flattened. Palpation of the left breast yields no distinct masses. Axillary lymph nodes are not palpable. Bilateral diagnostic mammography reveals no abnormalities. Which of the following is the most appropriate next step in management?

A 24-year-old woman comes to the office after discovering a lump in her right breast while showering 3 days ago. She has not noticed any nipple discharge, skin changes, or breast pain. Her menstrual periods occur every 28 days and last for 4 to 5 days. Her last menstrual period ended 2 weeks ago. Her medical history is unremarkable, and she takes no medications. She has no family history of breast or ovarian cancer. Vital signs are within normal limits. On physical examination, there is a 2.5-cm, firm, mobile, non-tender, well-circumscribed mass in the upper outer quadrant of the right breast. There is no overlying skin erythema, dimpling, or nipple retraction. No axillary or supraclavicular lymphadenopathy is appreciated. Which of the following is the most appropriate next step in management?

Evaluate the following clinical scenarios encountered in an outpatient women's health clinic. Select the most accurate diagnosis that corresponds to each patient's specific presentation.

An otherwise healthy 36-year-old female patient presents to the outpatient clinic reporting a 3-week history of spontaneous, unilateral breast discharge. She notes finding small, blood-stained spots on the inside of her bra on the left side. The patient denies any localized breast pain, fever, recent trauma, or palpable lumps. Her menstrual cycles are regular, and she is currently nulliparous. She takes no daily medications and has no family history of breast cancer. On physical examination, visual inspection shows normal breast symmetry without overlying skin changes or nipple retraction. Careful palpation of all quadrants yields no discrete masses, and there is no axillary lymphadenopathy. Gentle pressure applied around the left areola produces a single drop of bloody fluid from a single duct opening. Which of the following is the most likely diagnosis?

Match each clinical presentation of a breast disorder to its most likely corresponding histopathological finding on core needle biopsy.

A 26-year-old nulligravid woman comes to the clinic because she found a lump in her left breast 1 week ago. She is premenopausal with regular 28-day menstrual cycles, and her last menstrual period was 10 days ago. She is currently not pregnant and is not lactating. She has no significant past medical history, and her family history is negative for breast or ovarian cancer. On physical examination, her vital signs are within normal limits. Breast examination reveals a 2.5-cm, firm, mobile, well-circumscribed, and non-tender mass in the upper outer quadrant of the left breast. There is no overlying skin dimpling, erythema, or nipple discharge. There is no palpable axillary or supraclavicular lymphadenopathy. Which of the following is the most appropriate next step in evaluation?

A 54-year-old postmenopausal woman comes to the clinic to discuss the results of a recent breast biopsy. A routine screening mammogram performed two weeks ago demonstrated a new 8-mm cluster of fine, pleomorphic microcalcifications in the upper outer quadrant of her right breast. Physical examination reveals no palpable breast masses, nipple discharge, or overlying skin changes. Axillary lymph nodes are not palpable. She has no personal or family history of breast, ovarian, or colon cancer. She underwent a stereotactic core needle biopsy of the calcifications. The histopathology report reveals classic lobular carcinoma in situ (LCIS) without evidence of invasive disease or atypia. Which of the following is the most appropriate next step in management?

Match each distinct clinical presentation of a breast disorder to its most likely diagnosis.

Match each clinical scenario describing a patient with a breast disorder to the most appropriate next step in management.

A 36-year-old woman comes to the clinic reporting spontaneous, intermittent bloody discharge from her left nipple for the past 6 weeks. She has noticed dark stains on her bra but denies breast pain, skin changes, or a palpable lump. She has no personal or family history of breast cancer. She takes no medications. Vital signs are within normal limits. Physical examination reveals no palpable breast masses, skin dimpling, or axillary lymphadenopathy. Gentle pressure applied to the periareolar area of the left breast elicits a few drops of serosanguineous discharge from a single duct. Diagnostic mammography and targeted ultrasound of the left breast show no abnormalities. Which of the following is the most appropriate next step in management?

A 33-year-old woman comes to the office after noticing a firm, painless lump in her left breast 2 weeks ago. Physical examination reveals a 2.5-cm, hard, nonmobile mass in the upper outer quadrant of the left breast without overlying skin changes. There is no palpable axillary lymphadenopathy. Assuming the mass is highly suspicious for early-stage invasive breast carcinoma, arrange the following steps in the most appropriate chronological sequence for her standard diagnostic workup and management.

An asymptomatic $56$-year-old female presents to the clinic to discuss her recent imaging and biopsy results. During a routine health maintenance visit last month, a bilateral mammogram was ordered which demonstrated a highly suspicious $1.8$-cm stellate density with clustered, fine linear branching calcifications in the upper outer quadrant of her left breast (BI-RADS $5$). A subsequent image-guided stereotactic core needle biopsy of the lesion was performed. The histopathology report describes classic lobular carcinoma in situ (LCIS) without evidence of invasive malignancy, atypical ductal hyperplasia, or ductal carcinoma in situ. The patient has a history of hypertension and diet-controlled type 2 diabetes mellitus. Menopause occurred at age $51$. She currently takes lisinopril. Vital signs are within normal limits. Breast examination reveals symmetrical breasts with no skin dimpling, nipple retraction, or palpable masses. There is no cervical, supraclavicular, or axillary adenopathy. Which of the following is the most appropriate next action for this patient?

A 44-year-old woman comes to the clinic after noticing a new lump in her right breast 2 weeks ago. She performs intermittent breast self-examinations and has no family history of breast or ovarian cancer. Her medical history is significant for primary hypothyroidism, for which she takes levothyroxine. Menarche was at age 12, and she has regular menstrual cycles. She had a routine screening mammogram 4 months ago, which was reported as normal with heterogeneously dense breast tissue (BI-RADS 1). Vital signs are within normal limits. On physical examination, there is a 2.5-cm, firm, non-tender, and freely mobile mass in the upper outer quadrant of the right breast. There are no overlying skin changes, nipple retraction, or nipple discharge. There is no palpable cervical, supraclavicular, or axillary lymphadenopathy. Which of the following is the most appropriate next step in management?

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?