verified answers
_________ diseases may cross fibrous planes and have a tendency to grow
toward the skin. Ans✓✓✓ Malignant
***A thick echogenic halo is usually _____________. Ans✓✓✓ Malignant
***Extension of a tumor into a duct coursing away from the nipple - usually
involves multiple ducts. Ans✓✓✓ ***Branch pattern
***Extension of a tumor into a duct coursing toward the nipple. Ans✓✓✓
***Duct extension
***Thick echogenic halo which usually indicates tumor invasion with fibrotic host
response. Ans✓✓✓ ***Desmoplasia
123, ABC method indicates what Ans✓✓✓ 123 - distance from nipple in levels, 1
being the closes to the nipple and 4 being the periphery
ABC - Depth of lesion - A being superficial and C being near the chest wall.
A standoff pad moves the ___________ _________ __________ more superficial.
Ans✓✓✓ elevation plane focus
Acoustic enhancement Ans✓✓✓ -Most are cysts
-Solid benign tumors may enhance
-Good visulization of the posterior tumor wall
, -Some highly cellular malignant tumors may enhance
AIUM recommends which scan plane for breast imaging? Ans✓✓✓ Radial
aka Vibrational Doppler Imaging Ans✓✓✓ Fremitus
Benign or malignant feature: Angular margins Ans✓✓✓ Highly sensitive for
malignancy
Benign or malignant feature: Causes shadowing Ans✓✓✓ Malignant. Most solid
malignant tumors demonstrate some degree of shadowing. This may arise from
only part of the lesion.
Exception: Cooper's ligaments may cause shadowing due to refraction.
Exception: Some benign lesions such as calcifed fibroadenoma, radial scar, and fat
necrosis may cause shadowing.
Benign or malignant feature: Heterogeneous texture Ans✓✓✓ Malignant. Except
benign complex cysts and benign tumors with internal fibrosis, degeneration or
calcifications.
Benign or malignant feature: Horizontal Orientation Ans✓✓✓ Benign - aka wider
than tall
Benign or malignant feature: Ill-defined margins Ans✓✓✓ Malignant. Usually
indicates tumor invasion into surrounding tissue
Benign or malignant feature: Irregular shape Ans✓✓✓ Malignant