M10.08.05 Recognizing normal and abnormal findings
Normal Breast Findings
Inspection
- Symmetry: Breasts are generally symmetrical in size and shape, though slight asymmetry is common.
- Skin: Smooth, even texture without dimpling or retraction. Normal variations may include faint striae (stretch marks).
- Nipples: Symmetrical, pointing slightly outward or upward. The skin is smooth, with no visible retraction or discharge.
- Areolae: Round or oval, uniform color, which may be darker in pregnant or breastfeeding women.
Palpation
- Consistency: Firm, elastic tissue; premenstrual fullness and nodularity are common.
- Mobility: Breast tissue is freely movable over the chest wall.
- No Tenderness: Except for mild tenderness related to the menstrual cycle.
- Lymph Nodes: Small, non-tender nodes in the axilla may be palpable and are considered normal.
Abnormal Breast Findings
Inspection
- Asymmetry: Noticeable difference in size or shape of the breasts.
- Skin Changes:
- Dimpling: Skin appears puckered or dimpled, indicative of underlying tumor or fibrosis.
- Edema (Peau d’Orange): Skin appears thickened with enlarged pores, resembling an orange peel, often due to lymphatic obstruction by cancer.
- Erythema: Redness of the skin may indicate infection or inflammatory breast cancer.
- Ulceration: Breaks in the skin can indicate advanced cancer.
- Nipple Changes:
- Retraction: Nipple appears pulled inward, which can be a sign of underlying malignancy.
- Deviation: Nipple points in an abnormal direction.
- Discharge: Spontaneous, unilateral, and bloody discharge is particularly concerning.
Palpation
- Lumps or Masses: The presence of discrete lumps that are hard, irregular, and fixed to the skin or underlying tissue suggests malignancy.
- Tenderness: Diffuse tenderness not related to menstrual cycle, or tenderness associated with a localized mass.
- Axillary Lymph Nodes: Enlarged, firm, and non-mobile nodes are concerning for malignancy.
Specific Abnormal Findings
1. Breast Cancer
- Retraction Signs: Skin dimpling, nipple retraction, or abnormal contours.
- Skin Edema: Peau d’orange.
- Abnormal Mass: Hard, irregular, non-mobile, usually non-tender.
2. Fibroadenoma
- Well-Circumscribed Mass: Round, firm, mobile, usually non-tender.
- Typical Age: Young women, 15-35 years.
3. Cysts
- Soft to Firm Mass: Elastic, mobile, often tender.
- Typical Age: Women aged 35-50 years.
4. Mastitis
- Red, Swollen, Tender Area: Usually during breastfeeding.
- Systemic Symptoms: Fever, malaise.
5. Mammary Duct Ectasia
- Nipple Discharge: Thick, sticky, usually green or black.
- Nipple Retraction: Possible.
- Periareolar Mass: Sometimes present.
6. Paget’s Disease of the Nipple
- Eczemalike Lesion: Scaly, may weep, crust, or erode.
- Underlying Mass: Possible.
7. Fat Necrosis
- Irregular, Firm Mass: Often after trauma or surgery.
- Skin Retraction: Possible.
Summary Table
| Finding | Normal | Abnormal |
|---|---|---|
| Symmetry | Slight asymmetry | Noticeable difference in size or shape |
| Skin | Smooth, even texture | Dimpling, peau d’orange, erythema, ulceration |
| Nipples | Symmetrical, no discharge | Retraction, deviation, spontaneous unilateral discharge |
| Areolae | Uniform color | Eczemalike lesions (Paget’s disease) |
| Consistency | Firm, elastic | Hard, irregular masses |
| Mobility | Freely movable | Fixed to skin or underlying tissues |
| Tenderness | Mild, cyclic | Persistent, diffuse, or localized with a mass |
| Lymph Nodes | Small, non-tender | Enlarged, firm, non-mobile |
| Specific Conditions | Fibroadenoma, cysts, normal variations | Breast cancer, mastitis, mammary duct ectasia, Paget’s disease |
Recognizing these signs during a physical examination is essential for early detection and management of breast conditions.