Difference between revisions of "Tissue floater"
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A '''tissue floater''', also '''floater''', is a contaminant that is transferred to the slide some time during tissue processing.<ref name=pmid19492892>{{Cite journal | last1 = Platt | first1 = E. | last2 = Sommer | first2 = P. | last3 = McDonald | first3 = L. | last4 = Bennett | first4 = A. | last5 = Hunt | first5 = J. | title = Tissue floaters and contaminants in the histology laboratory. | journal = Arch Pathol Lab Med | volume = 133 | issue = 6 | pages = 973-8 | month = Jun | year = 2009 | doi = 10.1043/1543-2165-133.6.973 | PMID = 19492892 | URL = http://www.archivesofpathology.org/doi/full/10.1043/1543-2165-133.6.973}}</ref> | A '''tissue floater''', also '''floater''', is a (biologic) contaminant that is transferred to the slide some time during [[tissue processing]].<ref name=pmid19492892>{{Cite journal | last1 = Platt | first1 = E. | last2 = Sommer | first2 = P. | last3 = McDonald | first3 = L. | last4 = Bennett | first4 = A. | last5 = Hunt | first5 = J. | title = Tissue floaters and contaminants in the histology laboratory. | journal = Arch Pathol Lab Med | volume = 133 | issue = 6 | pages = 973-8 | month = Jun | year = 2009 | doi = 10.1043/1543-2165-133.6.973 | PMID = 19492892 | URL = http://www.archivesofpathology.org/doi/full/10.1043/1543-2165-133.6.973}}</ref> | ||
A tissue floater is a type of ''extraneous tissue''; tissue that is foreign to the case.<ref name=pmid22031316>{{Cite journal | last1 = Layfield | first1 = LJ. | last2 = Witt | first2 = BL. | last3 = Metzger | first3 = KG. | last4 = Anderson | first4 = GM. | title = Extraneous tissue: a potential source for diagnostic error in surgical pathology. | journal = Am J Clin Pathol | volume = 136 | issue = 5 | pages = 767-72 | month = Nov | year = 2011 | doi = 10.1309/AJCP4FFSBPHAU8IU | PMID = 22031316 | URL = http://ajcp.ascpjournals.org/content/136/5/767.long }}</ref> | A tissue floater is a type of ''extraneous tissue''; tissue that is foreign to the case.<ref name=pmid22031316>{{Cite journal | last1 = Layfield | first1 = LJ. | last2 = Witt | first2 = BL. | last3 = Metzger | first3 = KG. | last4 = Anderson | first4 = GM. | title = Extraneous tissue: a potential source for diagnostic error in surgical pathology. | journal = Am J Clin Pathol | volume = 136 | issue = 5 | pages = 767-72 | month = Nov | year = 2011 | doi = 10.1309/AJCP4FFSBPHAU8IU | PMID = 22031316 | URL = http://ajcp.ascpjournals.org/content/136/5/767.long }}</ref> | ||
Revision as of 23:07, 7 May 2012
A tissue floater, also floater, is a (biologic) contaminant that is transferred to the slide some time during tissue processing.[1]
A tissue floater is a type of extraneous tissue; tissue that is foreign to the case.[2]
Quality
Main article: Quality
Floaters are considered to be near-misses, as they can lead to misdiagnoses if not identified as such.[3] They are considered to be an indicator of (poor) quality.
Management
- Floaters are not found in the tissue block.[2]
- Contaminants in the tissue block, i.e. paraffin, are known as "pick-up" and generally result conditions at the grossing bench.
- Tissue that cannot be definitely identified as a floater may require identity testing, using short tanden repeat (STR) DNA testing.[4]
See also
References
- ↑ Platt, E.; Sommer, P.; McDonald, L.; Bennett, A.; Hunt, J. (Jun 2009). "Tissue floaters and contaminants in the histology laboratory.". Arch Pathol Lab Med 133 (6): 973-8. doi:10.1043/1543-2165-133.6.973. PMID 19492892.
- ↑ 2.0 2.1 Layfield, LJ.; Witt, BL.; Metzger, KG.; Anderson, GM. (Nov 2011). "Extraneous tissue: a potential source for diagnostic error in surgical pathology.". Am J Clin Pathol 136 (5): 767-72. doi:10.1309/AJCP4FFSBPHAU8IU. PMID 22031316.
- ↑ Smith, ML.; Raab, SS. (Nov 2011). "Assessment of latent factors contributing to error: addressing surgical pathology error wisely.". Arch Pathol Lab Med 135 (11): 1436-40. doi:10.5858/arpa.2011-0334-OA. PMID 22032570.
- ↑ Mosse, CA.; Stumph, JR.; Best, DH.; Vnencak-Jones, CL. (Sep 2009). "A B-cell lymphoma diagnosed in floater tissue: implications of the diagnosis and resolution of a laboratory error.". Am J Med Sci 338 (3): 248-51. doi:10.1097/MAJ.0b013e3181a88dc0. PMID 19745614.