Joseph Junewick, MD FACR
over 7 years ago
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Heather Borders, MD
|Diagnostic Category: Developmental or Congenital
|Created: over 6 years ago
|Updated: over 5 years ago
One month old infant male with firm right breast
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