CH 18 Breasts, Axillae, and Regional Lymphatics Flashcards
Structure and Function: Glandular Tissue
lobules - clusters of alveoli that produce milk and empty into lactiferous duct
lactiferous sinuses - reservoirs for holding milk
Structure and Function: Fibrous Tissue
suspensory ligaments
- support breast tissue
- attach to chest wall
Structure and Function: Adipose Tissue
layers of subcutaneous and retromammary fat
- bulk of breast tissue composition
Four Quadrants (most common area for breast tumors?)
upper inner/outer
lower inner/outer
upper region is usually where breast tumors are located
Lymphatics (4 groups)
central axillary nodes
anterior (pectoral) axillary nodes
subscapular nodes
lateral (brachial) axillary nodes
Developmental Competence: Adolescent
puberty (estrogen stimulate breast changes)
more fat deposition (enlargement)
higher BMI linked to earlier onset of breast tissue development
Thelarche - beginning of breast development
Menarche - onset of menstruation
Developmental Competence: Pregnancy
breast change during second month (common)
enlargement/feels more nodular
increased vascularity
Developmental Competence: The Aging Adult
post-menopause
ovarian secretion of estrogen and progesterone decreases
decreased breast size and elasticity (subq tissue atrophies)
Collecting Objective Data: Inspection
Appearance of skin (smooth and even tone)
Size and symmetry (slightly asymmetrical is normal)
Contour
Characteristics of nipples
Collecting Objective Data: Positioning for Retraction Screening
arms at side, arms above head, hands on hips, leaning forward
retraction could be sign of fibrosis
Collecting Objective Data: Inspect and Palpate Axillae
note rashes or discoloration
palpate in directions
- down chest wall from central axilla
- anterior border of axilla
- posterior border of axilla
- inner aspect of inner arm
Collecting Objective Data: Palpating Breasts
supine position is most beneficial
follow vertical strip pattern best for detecting lumps
Collecting Objective Data: What to note when detecting lumps
location size shape consistency movable distinctness nipple tenderness
BREAST (more advanced cancer) breast mass retraction edema axillary mass scaly nipple tender breast
Breast Cancer (modifiable risk factors)
nulliparity (no natural born child) or first child after 30 y/o current use of oral contraceptive long-term use of HRT not breast feeding alcohol intake 2-5 drinks daily obesity (especially after menopause) physical inactivity
Breast Cancer (non-modifiable)
first-degree relatives of breast cancer pt who were diagnoses premenopausal and had bilateral disease
female >50 y/o
personal history
BRCA1 or BRCA2 gene mutation (breast cancer gene)
hx of hyperplasia (enlargement) on biopsy
menarche before 12y/op
menopause after 50 y/o
white race (higher risk)