Acini give rise to: Ans✓✓✓ TDLU's
BIRADS 0 Ans✓✓✓ Needs additional imaging
BIRADS 1 Ans✓✓✓ Negative for pathology
BIRADS 2 Ans✓✓✓ Benign finding
BIRADS 3 Ans✓✓✓ Probable benign finding
BIRADS 4 Ans✓✓✓ Suspicious finding
BIRADS 5 Ans✓✓✓ Highly suspicious finding
BIRADS 6 Ans✓✓✓ Biopsy proven cancer
Define axial resolution: Ans✓✓✓ The ability to visualize 2 targets as separate
that lie parallel to the sound beam
Define elevational resolution: Ans✓✓✓ The ability to image structures in the Z
axis
Define lateral resolution: Ans✓✓✓ The ability to visualize 2 targets as separate
that lie perpendicular to the sound beam
, Define multicentric: Ans✓✓✓ 2+ tumors >5cm apart or in different quadrants
Define multifocal: Ans✓✓✓ 2+ tumors in the same quadrant or <5cm apart
Fibroadenomas are made up: Ans✓✓✓ Connective and epithelial tissue
How do lipomas appear on mammography? Ans✓✓✓ Radiolucent
How many lobes are there per breast? Ans✓✓✓ 15-20
Is fat radioloucent or radiopaque? Ans✓✓✓ Radiolucent
List 3 structures seen as radiopaque on mammo: Ans✓✓✓ Water, calcium, and
fibrous tissue
Macrocysts are >: Ans✓✓✓ 2mm
Spiculation is a result of: Ans✓✓✓ Desmoplasia
The 2 major arterial supplies to the breast are: Ans✓✓✓ Lateral thoracic artery
and internal mammary artery
The internal mammary artery arises from the: Ans✓✓✓ Subclavian artery