breast Flashcards
What is the location of the greatest volume of the breast
upper outer quadrant
Blood supply of breast
- internal mammary artery
- posterior intercostal artery
- branches of axillary artery
Venous drainage of breast
- internal thoracic vein
- posterior intercostal vein
- branches of axillary vein
Possible route for breast cancer metastases to the vertebrae, skull, pelvic bones and CNS
Batson’s vertebral plexus
Most common site of axillary LN metastasis
Lateral/ axillary vein group - I
This hormone promotes ductal development of breast
estrogen
This hormone promotes lobular development of breast
progesterone
Treatment of breast abscess
- pre operative ultrasound
- incision and drainage - with suppuration
- local wound care - antibiotics and warm compress
This is a recurrent retroareolar infection and abscess of the breast
Zuska’s disease (recurrent periductal mastitis)
A benign self limited condition which is a variant of thrombophlebitis that involves the superficial veins of the anterior chest wall and breast
mondor disease
Treatment of mondor disease
- anti inflammatory medications
- war compress
- restriction of motion
- brassiere support
What is a size of a giant fibroadenoma
> 3 cm
Treatment of fibroadenoma
- cryoablation
- surgical removal
- observe
This occurs when the stroma of the breast involutes too quickly and the alveoli remains.
Breast Cyst
Management of breast cyst
Core needle biopsy
Definition of microcalcification
- < 0.5 mm
- fine
- linear
- branching
It occurs in premenopausal women with serous or bloody nipple discharge
intraductal papilloma
What age to perform baseline mammography
35 y.o
What age to do annual mammogram
40 y.o
What is the treatment if there is mutation in HER 2 gene
herceptin/trastuzumab
Most common sign of breast CA
Mass
Where is BRCA 1 located
chromosome 17q
- develops invasive ductal carcinoma
- poorly differentiated
- hormone receptor negative
Where is BRCA 2 located
Chromosome 13q
- develops invasive ductal carcinoma
- well differentiated
- hormone receptor positive
Most important prognostic correlate of disease free and overall survival of breast CA
axillary lymph node status
Most common sites of metastases in breast CA
- bone
- lung
- pleura
- soft tissue
- liver
Treatment of LCIS
- observation
- chemoprevention with tamoxifen and bilateral total mastectomy
- close follow up with PE and bilateral mammograms
Treatment of DCIS
- > 4 cm or >1 quadrant - mastectomy
2. low grade DCIS (cribriform or papillary subtype) and < 0.5 cm - lumpectomy
What is the pathognomonic finding of Paget’s disease of nipple
large, pale, vacuolated cells in the rete pegs of the epithelium
Paget disease is positive for what marker
CEA
It is a multifocal, multicentric and bilateral breast cancer with signet ring cells
invasive lobular carcinoma
What test is used in nipple discharge
ductography
Treatment of early invasive breast cancer (stage I, IIA, IIB)
Breast conservation surgery
- lumpectomy
- radiation therapy
Contraindication to breast conservation surgery
- prior RT
- unknown margin status
- multicentric disease
- scleroderma or SLE
Treatent of advanced local regional breast cancer (IIIA, IIIB)
- surgery - MRM
- adjuvant RT
- chemotherapy - neoadjuvant
5 year survival rate of breast cancer
I - 94% IIA - 85% IIB - 70% IIIA - 52% IIIB - 48% IV - 18%
This surgery is the removal of all breast tissue, nipple areola complex, skin and level I LN
extended simple mastectomy
What comprises a MRM
- removal of all breast tissue
- nipple areola complex
- level I and II LN
- skin
This surgery removes all breast tissue and skin, nipple areola complex, pectoralis major and minor, and level I, II, III LN
halstead radical mastectomy
Most frequent complication of MRM
seroma
treatment of pregnant breast CA
1st and 2nd trimester - MRM
3rd trimester - lumpeectomy with Axillary ND and RT after delivery
Treatment of Phylloides tumor/cystosarcoma
Benign - total excision with 2 - 3 cm margin
Malignant - total mastectomy WITHOUT` LN dissection
It is a variant of infiltrating ductal carcinoma characterized by skin changes of brawny induration, erythema with a raised edge, and edema/ peau d orange
inflammatory breast cancer
what causes the appearane of inflammatory breast cancer
dermal lymphatic invasion
This surgery is the removal of all breast tissue, nipple areola complex, skin
total (simple) mastectomy
This presents as a chronic, erythematous, eczematoid rash or ulcer and is associated with DCIS and invasive cancer of the breast
Paget’s disease
Treatment of Paget’s disease
- lumpectomy
- mastectomy
- MRM
depends on the extent of involvement and presence of invasive cancer
This drug is quoted as medical adrenalectomy
anastrazole - inhibit production of adrenal steroid and conversion of androgen to estrogen in the adrenal gland and peripherally