A galactocele (also called lacteal cyst or milk cyst) is a retention cyst containing milk or a milky substance that is usually located in the mammary glands. They can occur in women during or shortly after lactation. They present as a firm mass, often subareolar, and are caused by the obstruction of a lactiferous duct. Clinically, they appear similar to a cyst on examination. The duct becomes more distended over time by epithelial cells and milk. It may rarely be complicated by a secondary infection and result in abscess formation. These cysts may rupture leading to formation of inflammatory reaction and may mimic malignancy. Once lactation has ended the cyst should resolve on its own without intervention. A galactocele is not normally infected as the milk within is sterile and has no outlet through which to become contaminated. Treatment is by aspiration of the contents or by excision of the cyst. Antibiotics are given to prevent infection.Galactoceles may be associated with oral contraceptive use. They have been known to present, although rarely, after Breast augmentation and Breast reduction. References
External links

Case description and discussion at Harvard.edu
Nix or NIX may refer to:

Places
Nix, Alabama, an unincorporated community, United States
Nix, Texas, a ghost town in southwestern Lampasas County, Texas, United States
Nix (moon), a moon of Pluto

People
Nix (surname), listing people with the surname

In science and technology
Nix (gene), a pro-apoptotic gene
Norwegian Internet Exchange (NIX), an Internet exchange point in Oslo
Neutral Internet Exchange of the Czech Republic, the Internet exchange point in Prague
Nix package manager, a "purely functional" package and configuration manager for computer systems
Unix-like, abbreviated *nix or nix

Codes
Nioro Airport, Mali (IATA airport code: NIX)
Hema language, (ISO 639-3 code: nix)

Other uses
Nix Federal Building, a historic building in Philadelphia, Pennsylvania
Nix Professional Building, a hospital in San Antonio, Texas
Permethrin, branded as Nix in North America, an anti-lice drug
"Nix", a song by Golden Boy with Miss Kittin from Or
The Nix, a 2017 novel by Nathan Hill
Neck (water spirit) or nix, an aquatic being in Germanic folklore

See also
All pages with titles beginning with Nix 
Nyx (disambiguation)
Nixe (disambiguation)
Nick (disambiguation)
NIC (disambiguation)
New York Knicks, basketball team