Which imaging modality is associated with contrast uptake that may indicate a malignant breast mass?

Which imaging modality is associated with contrast uptake that may indicate a malignant breast mass?

• A. Mammography
• B. Ultrasound
• C. MRI
• D. Biopsy

Answer: (C)

Magnetic resonance imaging uses gadolinium-based contrast to visualize tissue vascularity. Malignant breast masses often have abnormal, leaky blood vessels, so they take up contrast quickly and show characteristic enhancement patterns. In dynamic contrast-enhanced MRI, cancerous lesions typically exhibit rapid initial uptake and can demonstrate rapid washout or persistent enhancement, which helps distinguish them from benign tissues and informs biopsy decisions. Mammography and ultrasound can detect masses but rely on density or acoustic features rather than contrast uptake, and biopsy provides a definitive tissue diagnosis.

Magnetic resonance imaging uses gadolinium-based contrast to visualize tissue vascularity. Malignant breast masses often have abnormal, leaky blood vessels, so they take up contrast quickly and show characteristic enhancement patterns. In dynamic contrast-enhanced MRI, cancerous lesions typically exhibit rapid initial uptake and can demonstrate rapid washout or persistent enhancement, which helps distinguish them from benign tissues and informs biopsy decisions. Mammography and ultrasound can detect masses but rely on density or acoustic features rather than contrast uptake, and biopsy provides a definitive tissue diagnosis.