BI-RADS (Mammo)

Question 1

Components of report

Answer 1

1. Composition
2. Mass
3. Calcifications
4. Architectural Distortion
5. Assymetry
   Others: IM LN, Skin lesion, SDD, Associated features, Location

Question 2

Masses

Answer 2

Shape (round, oval, irregular)
Margin (circ, obsc, microlobulated, indistinct, spiculated)
Density (high, equal, low, fat)

Question 3

Benign Calcification

Answer 3

Skin
Vascular
Coarse/pop-corn like
Large rod-like
Round
Rim
Dystrophic
Milk of Ca
Suture

Question 4

Suspicious Calcs and associated risks

Answer 4

Amorphous (21%)
Coarse heterogenous (13%)
Fine pleomorphic (29%)
Fine linear or linear branching (70%)

Question 5

Distribution

Answer 5

Diffuse
Regional
Grouped
Linear
Segmental

Question 6

Assymetry

Answer 6

Assymetry
Global
Focal
Developing

Question 7

Fat-containing lesions

Answer 7

Lipoma, Oil cyst, Galactocele, Hamartoma

Question 8

Category 4A

Answer 8

4A. >2 <=10% risk. Finding needs intervention but low suspicion. E.g. partially (<75% circumscribed solid mass with US suggestive of FA, ?abscess, palpable solitary complicated cyst

Question 9

Category 4B

Answer 9

4B. >10 <= 50%. Moderate suspicion. E.g. amorphous or fine pleomorphic, indistinct solid mass.

Question 10

Category 4C

Answer 10

4C. 50-95%, high suspicion

Question 11

Category 5

Answer 11

Identify lesions for which any nonmalignant percutaneous tissue dx is considered discordant., usually resulting in recommendation of repeat bx