Name
University of Phoenix
NSG/507 Social Justice and Information Systems for Population Health
Prof. Name
Date
Scenario:
A 44-year-old woman has a breast mass that was diagnosed as a benign breast cyst. She has no family history of breast cancer and has had one screening mammogram at age 43.
Question: What is the most appropriate advice regarding breast cancer screening?
Answer: C. She was compliant with USPSTF recommendations for her age and risk factors.
Explanation:
Women at average risk should follow age-appropriate breast cancer screening recommendations. Routine breast self-examination (BSE) is not universally recommended because evidence has not demonstrated that it reduces breast cancer mortality. Screening recommendations also vary somewhat among professional organizations, so clinicians should use current evidence-based guidelines when counseling patients.
High-yield points:
Average-risk women should receive age-appropriate screening.
Routine BSE is not universally recommended.
Breast cancer screening recommendations differ among organizations.
Scenario:
A healthy 42-year-old woman wants to replace mammography with breast MRI because she is concerned about radiation exposure.
Question: Which statement about breast MRI screening is correct?
Answer: B. MRI increases sensitivity but decreases specificity.
Explanation:
Breast MRI is more sensitive than mammography for detecting breast cancer, but it is less specific and therefore produces more false-positive findings. MRI is generally used as an additional screening tool for women at substantially increased risk rather than as a replacement for mammography in average-risk women.
High-risk groups may include women with a BRCA1 or BRCA2 pathogenic variant, a calculated lifetime breast cancer risk of approximately 20% or greater, or a history of chest radiation at a young age.
High-yield points:
MRI has greater sensitivity than mammography.
MRI has lower specificity and can lead to more false-positive results.
High-risk patients may require MRI in addition to mammography.
Scenario:
A 35-year-old woman presents with bilateral milky nipple discharge and irregular menstrual cycles. Her pregnancy test is negative, and thyroid function is normal.
Question: What is the most likely diagnosis?
Answer: E. Prolactinoma.
Explanation:
Bilateral milky nipple discharge, or galactorrhea, combined with menstrual irregularities suggests hyperprolactinemia. A prolactinoma is an important cause of persistent galactorrhea. Pregnancy and hypothyroidism should be excluded during the evaluation.
High-yield points:
Galactorrhea plus menstrual irregularities suggests hyperprolactinemia.
Pregnancy should be excluded.
Hypothyroidism should be considered.
Prolactin-secreting pituitary adenomas can cause persistent galactorrhea.
Scenario:
A 22-year-old woman discovers a painless breast mass while performing a self-examination.
Question: Which statement is correct?
Answer: B. Fibroadenoma is more likely than breast cancer.
Explanation:
Fibroadenoma is one of the most common benign breast tumors in young women. Although most breast masses in this age group are benign, a persistent or new breast mass should still be clinically evaluated. BSE may increase breast awareness, but routine BSE has not been shown to reduce breast cancer mortality.
High-yield points:
Fibroadenoma is common in younger women.
Most breast masses in young women are benign.
A persistent breast mass requires appropriate evaluation.
Scenario:
A 48-year-old woman has multiple paternal relatives with breast cancer. Her father also had breast cancer, and she has Ashkenazi Jewish ancestry.
Question: Which statement is true?
Answer: D. She has multiple indications for BRCA testing.
Explanation:
A strong family history of breast cancer, particularly male breast cancer, can indicate an increased likelihood of a hereditary breast and ovarian cancer syndrome. Paternal family history is important because BRCA-related pathogenic variants can be inherited from either parent. Ashkenazi Jewish ancestry is also associated with several well-established BRCA founder variants.
Genetic risk assessment can help determine whether testing is appropriate and whether enhanced surveillance or preventive strategies should be considered.
High-yield points:
Paternal family history is clinically important.
Male breast cancer can increase suspicion for hereditary cancer risk.
Multiple affected relatives may warrant genetic evaluation.
Ashkenazi Jewish ancestry can be an important hereditary risk factor.
A positive pathogenic BRCA result can affect screening and preventive management.
Scenario:
A 68-year-old woman has a mother with breast cancer, a cousin diagnosed before age 50, prior chest radiation, dense breasts, previous benign breast biopsies, and a history of hormone replacement therapy.
Question: Which statement is correct?
Answer: C. MRI has higher sensitivity but lower specificity than mammography.
Explanation:
Breast MRI can detect additional cancers that may not be visible on mammography, but its lower specificity increases the likelihood of false-positive findings and additional testing. Dense breast tissue can also reduce the sensitivity of mammography. Prior therapeutic chest radiation, particularly at a young age, is an established risk factor for breast cancer.
High-yield points:
MRI is more sensitive but less specific than mammography.
Dense breasts can reduce mammographic sensitivity.
Prior chest radiation can substantially increase breast cancer risk.
MRI screening is generally considered for women at sufficiently high risk.
Scenario:
A 66-year-old woman has a firm, non-tender right supraclavicular lymph node.
Question: Which statement is correct?
Answer: E. Breast cancer may spread directly to infraclavicular and supraclavicular nodes without obvious axillary involvement.
Explanation:
A firm, non-tender supraclavicular lymph node in an older adult is concerning for malignancy and requires appropriate evaluation. Breast cancer can spread through several lymphatic pathways, including the axillary, infraclavicular, and supraclavicular nodes.
High-yield points:
Firm, hard, fixed, or non-tender lymph nodes can be concerning for malignancy.
Breast cancer commonly involves axillary nodes but can also involve infraclavicular and supraclavicular nodes.
Supraclavicular lymphadenopathy should not automatically be considered benign.
Scenario:
A 24-year-old woman has a fibroadenoma located 3 cm superior and 3 cm medial to the right nipple.
Question: How should the location be documented?
Answer: A. Right breast, 10:30 position from the nipple.
Explanation:
The clock-face method provides a standardized way to document the location of a breast finding. The breast side, clock position, and distance from the nipple should be recorded so that the lesion can be accurately located during future examinations or imaging.
Document:
Right or left breast
Clock-face position
Distance from the nipple
Size
Consistency
Mobility
Tenderness
Scenario:
A 54-year-old postmenopausal woman notices that her breasts feel less lumpy.
Question: Which statement is correct?
Answer: C. Breast glandular tissue atrophies because the number of lobules decreases.
Explanation:
After menopause, hormonal changes lead to involution of the glandular component of the breast. Lobular and glandular tissue decreases and is progressively replaced by fatty tissue. As breast tissue becomes less dense, mammographic visualization may improve.
High-yield points:
Menopause causes a reduction in glandular tissue.
Lobular tissue decreases.
Fatty replacement increases.
Lower breast density generally improves mammographic sensitivity.
Scenario:
A 72-year-old woman has spontaneous unilateral bloody nipple discharge and a hard, fixed axillary lymph node.
Question: What is the most concerning diagnosis?
Answer: Breast cancer.
Explanation:
Spontaneous unilateral bloody nipple discharge, particularly when accompanied by suspicious lymphadenopathy, is a red flag for breast malignancy. A palpable breast mass may or may not be present.
High-yield points:
Spontaneous unilateral bloody discharge is concerning.
Hard or fixed lymph nodes raise suspicion for malignancy.
Breast cancer can occasionally occur without an obvious palpable mass.
Scenario:
A 44-year-old woman has a persistent eczema-like lesion involving the nipple and an underlying breast mass.
Question: What is the most likely diagnosis?
Answer: Paget disease of the breast.
Explanation:
Paget disease typically presents with a persistent scaly, crusted, or eczematous lesion of the nipple or areola. It is frequently associated with an underlying breast carcinoma, so persistent nipple changes require further evaluation.
High-yield points:
Persistent scaly nipple rash is concerning.
Crusting or ulceration may occur.
An underlying breast malignancy may be present.
Scenario:
A 56-year-old woman develops flattening or inward pulling of the nipple associated with an underlying breast mass.
Question: What finding is present?
Answer: Nipple retraction.
Explanation:
New nipple retraction can be a sign of breast malignancy. Fibrosis associated with a tumor can pull surrounding tissues inward, resulting in flattening or retraction of the nipple.
High-yield point:
New nipple inversion or retraction, particularly when associated with a mass, should be evaluated for malignancy.
Scenario:
A 19-year-old woman has clear nipple discharge only when the nipple is squeezed.
Question: What is the most likely interpretation?
Answer: Benign breast abnormality.
Explanation:
Discharge that occurs only with nipple compression is generally less concerning than spontaneous discharge. In a young woman without a palpable mass or other suspicious findings, this pattern is commonly benign.
High-yield points:
Discharge only with compression is generally less concerning.
Spontaneous discharge is more clinically significant.
Bloody or serous spontaneous discharge warrants evaluation.
Scenario:
An obese woman with irregular menstrual cycles has dark, thickened, velvety skin in the axillae.
Question: What is the most likely diagnosis?
Answer: Acanthosis nigricans.
Explanation:
Acanthosis nigricans causes hyperpigmented, thickened, velvety skin, particularly in body folds such as the axillae and neck. It is commonly associated with insulin resistance and obesity and may occur in patients with polycystic ovary syndrome (PCOS) or type 2 diabetes.
Associated conditions include:
Insulin resistance
Obesity
PCOS
Type 2 diabetes
Scenario:
A patient develops a painful, warm, mobile axillary lymph node after sustaining an injury to the hand.
Question: What is the most likely cause?
Answer: Infectious lymphadenopathy.
Explanation:
Lymphatic drainage from the hand and upper extremity can lead to reactive enlargement of axillary lymph nodes following an infection or injury. Tender, warm, mobile nodes are more consistent with an inflammatory or infectious process.
High-yield points:
Infectious lymph nodes are often tender and mobile.
The overlying skin may be warm or erythematous.
Always examine the area drained by the affected lymph nodes for wounds or infection.
Scenario:
A 30-year-old man has a 2-cm mass beneath the areola.
Question: What is the most likely finding?
Answer: Normal palpable subareolar breast tissue.
Explanation:
Some adult men have palpable tissue beneath the areola. Gynecomastia is also a common benign cause of subareolar enlargement. Male breast cancer is uncommon, but a new, firm, eccentric, or otherwise suspicious mass should still be evaluated appropriately.
Question: Which axillary lymph node group is most commonly involved in breast cancer?
Answer: Central axillary lymph nodes.
Explanation:
The central axillary nodes receive lymphatic drainage from several other axillary node groups and are commonly involved in breast cancer.
Question: When is the best time for a woman who performs breast self-examination to examine her breasts?
Answer: Approximately 5–7 days after menstruation begins, or shortly after menstruation ends.
Explanation:
Breasts are generally less swollen, tender, and lumpy during this period of the menstrual cycle, making examination easier.
High-yield point:
Breast tissue is usually easiest to examine when hormonal breast changes are minimal.
Question: Approximately what proportion of women presenting with a breast mass have breast cancer?
Answer: Approximately 10%.
Explanation:
Most breast masses are benign, but malignancy must always be considered. The likelihood varies substantially with age, clinical characteristics, imaging findings, and risk factors.
High-yield point:
Every new or persistent breast mass should receive appropriate clinical evaluation.
Question: According to older Bates recommendations, how frequently should a clinical breast examination be performed?
Answer: Every 3 years.
Explanation:
Older clinical examination recommendations included periodic CBE at three-year intervals for certain age groups. Current recommendations differ among professional organizations, so clinicians should follow the guideline applicable to the patient and practice setting.
Question: Which finding is generally considered benign?
Answer: One breast being slightly larger than the other.
Explanation:
Mild breast asymmetry is common and can be a normal variation. In contrast, newly developing skin dimpling, peau d’orange, or new nipple inversion can indicate an underlying pathologic process and require evaluation.
Question: Which palpation technique provides systematic breast coverage?
Answer: Vertical strip, or “lawn-mower,” pattern.
Explanation:
The vertical strip method allows the examiner to systematically cover the breast from the clavicle to the inframammary fold and from the sternum toward the midaxillary line. The Tail of Spence should also be examined.
High-yield point:
Always include the Tail of Spence when examining the breast and axillary region.
Question: What is an important component of breast examination after mastectomy?
Answer: Carefully examine the surgical scar and surrounding tissue for evidence of recurrence.
Explanation:
Patients who have undergone mastectomy require ongoing surveillance. Examination should include the mastectomy site or surgical scar, remaining breast tissue when applicable, and regional lymph nodes.
Continue surveillance of:
Surgical scar and mastectomy site
Remaining breast
Axillary lymph nodes
Other relevant regional lymph nodes
Question: What is an important fact about breast self-examination?
Answer: Many breast masses are first noticed by the patient.
Explanation:
BSE can increase breast awareness and help individuals recognize changes in their breast tissue. However, routine BSE has not been shown to reduce breast cancer mortality, and recommendations regarding its use vary among organizations.
Question: What are the major components of breast tissue?
Answer: Fibrous, glandular, and adipose tissue.
Explanation:
The breast contains glandular tissue organized into lobes and lobules, fibrous connective tissue including Cooper ligaments, and variable amounts of adipose tissue. The breast itself contains very little muscle.
Key structures include:
Lobes and lobules
Fibrous connective tissue
Cooper ligaments
Adipose tissue
Question: Which area of the breast contains the largest proportion of breast tumors?
Answer: The upper outer quadrant.
Explanation:
The upper outer quadrant contains a relatively large amount of breast tissue and includes the Tail of Spence, which extends toward the axilla. Breast cancers commonly arise in this region.
Question: What are the major axillary lymph node groups?
Answer: Central, lateral, pectoral, and subscapular lymph nodes.
Explanation:
These groups receive lymphatic drainage from the breast, upper extremity, and thoracic wall and play an important role in the spread and staging of breast cancer.
Question: Which lymph nodes are most likely to enlarge with an infection of the breast?
Answer: Ipsilateral axillary lymph nodes.
Explanation:
Most lymph from the breast drains toward the axillary lymph nodes on the same side. Consequently, infection or inflammation of the breast can cause reactive enlargement of the ipsilateral axillary nodes.
Question: When does breast development usually begin?
Answer: Breast development generally begins between 8 and 10 years of age.
Explanation:
Breast budding is typically one of the earliest visible signs of puberty in girls. The timing can vary, and normal pubertal development occurs across a range of ages.
Question: Is temporary enlargement of one breast during puberty normal?
Answer: Yes. Temporary breast asymmetry is usually normal during puberty.
Explanation:
The breasts do not always develop at the same rate. One breast may begin developing before the other, and mild tenderness can occur during breast development.
High-yield points:
Pubertal breast asymmetry is common.
One breast may develop before the other.
Mild tenderness can be normal.
Question: When evaluating delayed menarche, what important developmental history should be obtained?
Answer: Ask when breast development began.
Explanation:
Breast development is an important marker of pubertal progression. Menarche typically occurs approximately two years after breast budding begins.
Question: What causes cyclic changes in breast fullness and tenderness?
Answer: Hormonal changes during the menstrual cycle.
Explanation:
Estrogen and progesterone fluctuations cause predictable changes in breast tissue throughout the menstrual cycle. Premenstrual breast changes may include fullness, heaviness, swelling, and tenderness.
High-yield points:
Premenstrual breast changes are hormonally mediated.
Common symptoms include fullness, heaviness, and tenderness.
Breasts are generally least swollen several days after menstruation begins.
The following findings should prompt careful evaluation for possible malignancy:
Spontaneous unilateral bloody nipple discharge
Hard or fixed lymph nodes
Persistent Paget-like nipple changes
Peau d’orange
Skin dimpling
New nipple inversion or retraction
Suspicious supraclavicular lymphadenopathy
A new persistent breast mass
Findings that are often benign include:
Fibroadenoma in a young woman
Mild breast asymmetry
Discharge occurring only with nipple compression
Temporary breast asymmetry during puberty
Tender, warm, mobile lymph nodes associated with infection
Palpable subareolar tissue in men
Breast MRI generally provides:
Increased sensitivity
Decreased specificity
More false-positive findings than mammography
MRI is primarily used as an adjunct to mammography for women at substantially increased breast cancer risk, such as those with certain hereditary cancer syndromes, a sufficiently high calculated lifetime risk, or a history of chest radiation at a young age.
For a systematic breast examination:
Use the vertical strip (“lawn-mower”) pattern.
Examine the entire breast.
Include the Tail of Spence.
Assess the axillary and regional lymph nodes.
Document breast findings precisely.
For a breast mass, record:
Right or left breast
Clock-face position
Distance from the nipple
Size
Consistency
Mobility
Tenderness
Associated skin or nipple changes
After menopause:
Lobular tissue decreases.
Glandular tissue decreases.
Fatty replacement increases.
Breast density generally decreases.
Mammographic visualization may improve because there is less dense glandular tissue.
Genetic risk assessment should be considered when the family history suggests hereditary breast cancer, including patterns involving:
Male breast cancer
Multiple affected relatives
Breast cancer at unusually young ages
Relevant paternal family history
Certain ancestries associated with pathogenic founder variants, such as Ashkenazi Jewish ancestry
A pathogenic BRCA1 or BRCA2 variant can affect recommendations for breast cancer surveillance, risk-reducing strategies, and family counseling.
