Kinyoun stain

Kin·youn stain

a method for demonstrating acid-fast microorganisms, using carbol fuchsin, acid alcohol, and methylene blue; acid-fast microorganisms appear red against a blue background.

Kinyoun stain

a modification of the Ziehl-Neelsen acid-fast stain in which organisms are stained cold by using carbol-fuchsin. It is often used for detection of mycobacteria, Nocardia, and oocysts of some parasites. See also carbol-fuchsin stain.


Joseph J., U.S. physician, 1860-1919.
Kinyoun stain - a method for demonstrating acid-fast microorganisms.
References in periodicals archive ?
A cytospin slide prepared from the broth was positive for acid-fast bacilli by Kinyoun stain.
Kinyoun stain was negative for acid-fast organisms, and no malignancy was identified.
It can be demonstrated in direct smears by modified Kinyoun stain, in which acid-alcohol decolorizer is substituted with a low-concentration inorganic acid.
All bone marrow specimens were positive for MTBC by culture, or were either positive for AFB by Kinyoun stain or contained granulomas.