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Normal cells / non-neoplastic findings

Barr body

Reviewer: Nat Pernick, M.D., PathologyOutlines.com, Inc. (see Reviewers page)
Revised: 20 September 2012, last major update June 2011
Copyright: (c) 2006-2011, PathologyOutlines.com, Inc.


● Inactive X chromosome, present on nuclear margin, formed by telomere association (Proc Natl Acad Sci USA 1991;88:6191, Wikipedia)
● Identified by Dr. Murray Barr (Wikipedia, WhoNamedIt.com)

Cytology description

● Darkly stained body attached to nuclear membrane

Cytology images

Various images


End of Cervix-cytology > Normal cells / non-neoplastic findings > Barr body

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