Overview
This lecture covers the anatomy of the breast and axillae, risk factors and detection of breast cancer, and guidelines for clinical assessment and patient self-examination.
Breast Anatomy and Quadrants
- The breast is anatomically divided into four quadrants for precise documentation of findings.
- Most breast cancers occur in the upper outer quadrant due to dense glandular tissue.
- The axilla (armpit area) is closely related to the breast for cancer spread studies.
Breast Tissue and Lymph Nodes
- Breast tissue includes glandular, fibrous, and fatty components.
- Lymph nodes drain lymph from the breast and axilla, serving as potential sites for cancer metastasis.
Physiological and Hormonal Influences
- Breast tissue changes during pregnancy and breastfeeding (lactation).
- Hormonal factors, like estrogen exposure, can influence breast cancer risk.
Breast Cancer Risk Factors and Prevention
- Major risk factors include age, family history, hormone replacement therapy, and early menarche or late menopause.
- Preventive strategies include minimizing hormone exposure and regular screening.
Detection Techniques and Assessment
- Self-examination and clinical breast exams help in early cancer detection.
- Mammography is a key imaging technique for early diagnosis of breast cancer.
- Prompt assessment is needed for breast lumps, skin changes, or nipple discharge.
Inflammatory and Advanced Breast Cancer
- Inflammatory breast cancer presents with redness, swelling, and skin thickening, often indicating advanced disease.
- Late-stage cancers may involve surrounding skin or lymph nodes, requiring urgent management.
Key Terms & Definitions
- Quadrant — One of four breast sections used for locating abnormalities.
- Lymph Node — Small glands that filter lymph and can show cancer spread.
- Mammography — X-ray imaging technique for early breast cancer detection.
- Self-examination — Patient-led palpation to detect breast changes.
Action Items / Next Steps
- Practice breast self-examination monthly.
- Schedule regular clinical breast exams and mammograms as recommended.
- Review breast anatomy and quadrant divisions for documentation.
- Study risk factors and preventive strategies for breast cancer.