8: Benign Breast Masses

Question 1

Discrete, tender, mobile; size may fluctuate with the menstrual cycle.

Answer 1

Cyst

Question 2

Stromal hypercellularity with glandular and ductal elements.

Answer 2

Phyllodes Tumor

Question 3

Discrete, firm, round, mobile, findings similar to a fibroadenoma, but mass is usually larger; may observe stretching of skin due to rapid growth.

Answer 3

Phyllodes Tumor

Question 4

Ductal epithelium, dense stroma, numerous elongated nuclei without fat.

Answer 4

Fibroadenoma

Question 5

Fat with inflammation.

Answer 5

Fat necrosis

Question 6

Discrete, smooth, round or oval, nontender, mobile.

Answer 6

Fibroadenoma

Question 7

Discrete, soft, nontender; may or may not be mobile.

Answer 7

Lipoma

Question 8

Discrete, firm, sometimes tender.

Answer 8

Galactocele

Question 9

Ill defined, firm, nontender, nonmobile.

Answer 9

Fat necrosis

Question 10

Fluid and inflammation.

Answer 10

Cyst

Question 11

Fat globules.

Answer 11

Galactocele

Question 12

Fatty tissue.

Answer 12

Lipoma

Question 13

Discrete, nontender, nonmobile; may be nonpalpable with incidental diagnosis on imaging studies.

Answer 13

Hamartoma

Question 14

Glandular tissue, fat, and fibrous connective tissue.

Answer 14

Hamartoma