Sonographic appearance of a carcinoma developed in ectopic axillary breast tissue

J Clin Ultrasound. 2005 Dec;33(9):468-70. doi: 10.1002/jcu.20169.


Primary breast cancer of ectopic axillary breast tissue is almost never diagnosed preoperatively. When not accompanied by nipple-areolar complex, the mass is often believed to be a lipoma, an enlarged lymph node, or a skin lesion such as a sebaceous cyst or hydradenitis suppurativa. When an axillary mass is found, a percutaneous needle biopsy is mandatory to rule out the diagnosis of cancer in ectopic breast tissue. We describe the sonographic findings of a case of ductal carcinoma in axillary ectopic breast tissue.

Publication types

  • Case Reports

MeSH terms

  • Axilla
  • Breast Neoplasms / diagnostic imaging*
  • Breast Neoplasms / pathology
  • Breast*
  • Carcinoma, Ductal, Breast / diagnostic imaging*
  • Carcinoma, Ductal, Breast / pathology
  • Choristoma / diagnostic imaging*
  • Female
  • Humans
  • Middle Aged
  • Ultrasonography