Retroareolar dilated ducts: Ultrasound

The ultrasound of the breast is from a 29-year-old lactating woman and shows dilated fluid-filled ducts (red arrow) manifesting as branching anechoic structures in the sagittal (A) and transverse planes (B).

Courtesy of Priscilla J Slanetz, MD, MPH, FACR.

Graphic 83705 Version 2.0