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Joseph Junewick, MD FACR
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Ductal ectasia

Case Detail

Anatomy: Breast
Heather Borders, MD
Diagnostic Category: Developmental or Congenital
Created: over 9 years ago
Updated: over 9 years ago
Tags: PEDS
Modality/Study Types: US
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One month old infant male with firm right breast

Case Images


Ductal ectasia


Multiple cystic and tubular spaces with intervening thin septations in the right subareolar region with similar changes on the left.


Mammary duct ectasia is rare in neonates and children and may result in bloody nipple discharge. The degree of ductal ectasia will determine if there is a palpable mass.

The abnormality consists of dilated mammary ducts and periductal fibrosis and inflammation, with no clear etiologic explanation. Typical clinical course of spontaneous resolution with breast feeding supports a hormonal contribution.

Ultrasound demonstrates tubular or branching structures in the subareolar region, typically bilateral.

If there are no clinical symptoms, watchful waiting is typically the only necessary follow up.


PEDIATRIC RADIOLOGY Volume 34, Number 12, 952-957 Sonography of pediatric male breast masses: gynecomastia and beyond Steven T. Welch, Diane S. Babcock and Edgar T. Ballard

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