Stains & molecular markers
Cytokeratin 34 beta E12


Topic Completed: 1 July 2013

Minor changes: 15 December 2020

Copyright: 2003-2021, PathologyOutlines.com, Inc.

PubMed Search: 34betaE12[title]

Nat Pernick, M.D.
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Cite this page: Hamilton K, Pernick N. Cytokeratin 34 beta E12. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/stainsck34be12.html. Accessed January 17th, 2021.
Definition / general
  • High molecular weight keratin relatively specific for prostate basal cells
  • Reacts to CK1, CK5, CK10 and CK14 and possibly other keratins
  • Also called CK903, high molecular weight keratin
Uses by pathologists
Microscopic (histologic) images

Contributed by Stephen J. Schultenover, M.D.

Thyroid anaplastic carcinoma



Images hosted on other servers:

Prostatic adenocarcinoma
is negative with occasional
positive benign glands

Low grade bladder neoplasms

Positive staining - normal
Positive staining - not malignant
Positive staining - malignant
Negative staining
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