Breast - nonmalignant
Congenital anomalies
Amastia / aplasia / hypoplasia of breast tissue

Author: Hind Nassar, M.D. (see Authors page)

Revised: 24 July 2017, last major update July 2010

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PubMed Search: Breast amastia aplasia hypoplasia

Cite this page: Amastia / aplasia / hypoplasia of breast tissue. PathologyOutlines.com website. http://pathologyoutlines.com/topic/breastamastia.html. Accessed November 20th, 2017.
Definition / general
  • Amastia: no glandular tissue (no breast bud), no nipple and no areola
  • Aplasia: nipple and areola present but no glandular tissue
  • Hypoplasia: small rudimentary breasts (i.e. breast underdevelopment); also called micromastia
Terminology
Epidemiology
  • Uncommon
  • Occurs more often in females than males
Sites
  • Unilateral or bilateral
Etiology
Case reports
Treatment
Clinical images

Images hosted on other servers:

Amastia in 11 year old girl

Hypoplasia in 9 year old girl
(fig 1)

Becker nevus with hypoplasia

Hypoplasia of right breast



26 year old woman:

Preoperative of bilateral amastia