Fig. 8.

A 62-year-old female with right primary neuroendocrine carcinoma of the breast. Findings: right breast ultrasound using a high-frequency linear probe (A and B) gray scale and (C) power Doppler images shows a 1.0 × 0.5 × 0.7 cm oval hypoechoic circumscribed parallel mass with normal sound transmission in the right breast 11–12 o'clock axes in the retroareolar region, corresponding to the largest mass on mammogram. Just deeper to this mass is a 0.6 × 0.4 × 0.8 cm oval anechoic circumscribed mass, consistent with a simple cyst, corresponding to the smallest mass on mammogram. Technique: right breast ultrasound using a high-frequency linear probe (A and B) gray scale and (C) power Doppler.