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Breast Sonography Exam (ARRT) Questions and Answers Latest Version Already Passed
What is the primary purpose of compression during breast ultrasound?✔✔ To reduce tissue thickness and improve image resolution
What characteristic suggests a benign breast lesion on ultrasound?✔✔ Oval shape with smooth, well-defined margins
Which transducer frequency is most appropriate for breast sonography?✔✔ High-frequency linear array, typically 10–18 MHz
Which imaging plane is best for evaluating ductal orientation in the breast?✔✔ Radial plane
What is a common sonographic appearance of a fibroadenoma?✔✔ Homogeneous, hypoechoic, oval lesion with gentle lobulations
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What does a "wider-than-tall" orientation suggest in breast lesion evaluation?✔✔ A likely benign finding
What feature is most concerning for malignancy in a breast mass?✔✔ Irregular, spiculated margins
What is the significance of posterior acoustic shadowing in a solid breast mass?✔✔ It may indicate malignancy
Which area is best evaluated using the anti-radial scan plane?✔✔ Regions perpendicular to ducts
What is the echogenicity of normal Cooper's ligaments on ultrasound?✔✔ Echogenic linear structures
What does ductal ectasia typically appear as on sonography?✔✔ Dilated ducts with anechoic or low-level internal echoes
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What is the best method to evaluate palpable lumps not seen on mammography?✔✔ Targeted breast ultrasound
What artifact might enhance visualization of cystic lesions in the breast?✔✔ Posterior acoustic enhancement
What is the likely cause of a breast mass showing internal echoes, septations, and posterior enhancement?✔✔ Complicated cyst
What ultrasound finding is most typical of a breast abscess?✔✔ Complex fluid collection with thick walls and internal debris
Which lymph nodes are routinely assessed during a breast sonographic exam?✔✔ Axillary lymph nodes
What does a hyperechoic breast mass usually suggest?✔✔ A benign etiology such as fat necrosis or lipoma 3 / 4
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Which sonographic feature is most typical of invasive ductal carcinoma?✔✔ Irregular, hypoechoic mass with angular margins and shadowing
What type of tissue typically appears isoechoic relative to fat in breast imaging?✔✔ Glandular tissue
How does the pectoralis muscle appear on breast ultrasound?✔✔ Hypoechoic band deep to the breast parenchyma
What is the most common benign breast tumor in young women?✔✔ Fibroadenoma
What is the first step in evaluating a new breast lump in a pregnant woman?✔✔ Ultrasound imaging
Which part of the breast is located closest to the chest wall?✔✔ Retromammary layer
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