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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Efficacy of a modified Ultra Fast Papanicolaou (UFP) stain for breast aspirates.

The chief limitation of Ultra Fast Papanicolaou (UFP) stain, suggested by Yang and Alvarez (1995), is that, Richard Allan Haematoxylin (RA-H) and Richard Allan Cytostain (RA-C), used in the staining procedure are not universally available. It has not been established so far, whether, changes in the reagents and their proportions depending on the local availability, influence the performance of the stain. The objective of this study was to assess the feasibility and applicability of a modified UFP stain to suit our local laboratory supplies of chemical dyes, as applied to the permanent smears prepared from Fine Needle Aspiration (FNA) of breast lumps. In the present study, smears from FNA from 100 breast lumps were stained by the modified UFP stain. The modification consisted of following two changes: use of Gill's Haematoxylin instead of RAH and omission of Orange G from cytostain. Eighty Six breast aspirates were adequate for interpretation. Smears showed transparent cells with crisp nuclear features, equal to and even better than the conventional Papanicolaou stain, in a blood free background. There was an increase in total staining time by 40 seconds. We recommend the use of this modified UFP stain, only if similar reagents are being used in other laboratories. Otherwise situation specific modifications may be needed. If the UFP stain is to be used for tissues where the chances of cytoplasmic keratinization are negligible, then the use of Orange G component of the stain may become redundant.[1]


  1. Efficacy of a modified Ultra Fast Papanicolaou (UFP) stain for breast aspirates. Kamal, M.M., Bodele, A., Munshi, M.M., Bobhate, S.K., Kher, A.V. Indian journal of pathology & microbiology. (2000) [Pubmed]
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