Detecting accurate tumor size across imaging modalities in breast cancer.

Background: Of the most common imaging modalities for breast cancer diagnosis - mammogram (MAM), ultrasound (US), magnetic resonance imaging (MRI) - it has not been well established which of these most accurately corresponds to the histological tumor size.

Objective: To determine which imaging modality (MAM, US, MRI) is most accurate for determining the histological tumor size of breast lesions.

Methods: A retrospective study of 76 breast cancers found in 73 female patients who received MAM, US, and/or MRI was performed.