Ultrasound is frequently used in conjunction with Mammography as sonography can differentiate between a cystic mass (fluid filled) and a solid mass.

• A. Mammography
• B. MRI
• C. CT
• D. Nuclear medicine

Answer: (A)

Pairing ultrasound with mammography combines two complementary strengths: mammography reveals the breast’s structure and any calcifications, while ultrasound adds real-time tissue characterization. This is especially useful because ultrasound can differentiate cystic from solid masses. A simple cyst on ultrasound looks anechoic (very dark) with posterior acoustic enhancement, indicating fluid content, whereas solid masses produce internal echoes and may have irregular or well-defined margins. This distinction guides management and often helps direct biopsy if needed, all without radiation.

Other imaging options listed aren’t used in the same routine, conjoint way for this purpose. MRI can further characterize lesions but isn’t the standard first-line co-use with ultrasound for this differentiation; CT and nuclear medicine don’t provide the same real-time, soft-tissue characterization and are not typical partners with breast ultrasound in this context.