BREAST

Question 1

LIMA CABG

Answer 1

Using the left internal mammary artery in a coronary artery bypass graft procedure; rare result of Left Breast Necrosis (1 : 1000)

Question 2

Lactating Structures

Answer 2

Alveoli, lobules, lobes
Multiple alveoli make up a lobule
Occurrence of Lobular cancer (15% of BRCA cases)

Question 3

Lactiferous Ducts

Answer 3

Union of ductules (which drain lobules)
Drain lobes
Ductal Cancer (85% of BRCA cases), presents with recent nipple retraction

Question 4

Suspensory Ligaments of Cooper

Answer 4

Located between skin and lobules
Keep breast taut
Firmer in young, weaker in old due to hormones
Cancer invasion leads to skin dimpling

Question 5

Lactiferous sinuses

Answer 5

Ampulla, located under areola
Temporary storage location of milk
Responsible for the “let down” reflex of milk into baby’s mouth

Question 6

Peau d’orange

Answer 6

Breast cancer presentation where there is skin edema due to blockage of the cutaneous lymphatic plexus