Normal and Abnormal Breast (Wootton) Flashcards
Progesterone is responsible for the growth of what in the breast?
stimulation of lobular growth and alveolar budding
Estrogen is responsible for the growth of what in the breast?
growth of adipose tissue and lactiferous ducts
Embryological origin of breast tissue?
modified sebaceous gland
Polythelia
extra nipples
Polymastia
accessory breast
What are the two most common breast complaints?
breast pain and a mass
What are some risk factors for breast cancer?
age (increases); hx of atypical hyperplasia; breast tissue density; first degree relative with breast/ovarian cancer; early menarche; late cessation of menses; nulliparity; height (tallness); long term use of OTC
Physical exam of the breast
examine BOTH breast; examine axilla and chest wall; palpable masses always get a biopsy
Mammography
detects lesions 2 years before they’re palpable; best in women 40+ (less dense); c/l breast should be images at the same time
What is considered a suspicious finding on a mammogram?
densities and calcifications
What category is considered “suspicious” in BI-RADS
category 4
Category 1 in BI-RADS
what you want to see; negative; essentially 0% likelihood of malignancy
Category 5 in BI-RADS
high suggestive of malignancy; >95% likelihood
When should you consider an ultrasound?
young women under 40 yrs; patients with dense breast tissue; guidance when performing core needle biopsies
When should you consider a MRI?
after a suspicious mass is seen on mammogram; post cancer diagnosis; patients at high risk for breast cancer (BRCA carriers)
When should you do a fine needle biopsy?
need to determine solid vs cystic mass clear fluid needs NO further evaluation; bloody fluid need diagnostic mammogram/US