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Immunohistochemical expression of CK7, CK5/6, CK19, and p63 in Warthin tumor.

Abstract
Our study included a number of 24 cases with Warthin tumor, diagnosed between 2007-2011, which were analyzed in terms of clinical, histopathological and immunohistochemistry point of view, using CK7, CK5/6, CK19, and p63 antibodies. Warthin tumor is most often a tumor with a slow evolution, painless, usually affecting males (M/F 3.2/1) in the seventh decade of life. Histopathologically, it is distinguished the predominance of the typical forms of the tumor, with a balanced ratio epithelium/stroma. The immunostaining for CK7 showed positivity in all the investigated cases both in the columnar luminal cells and basal cells. The immunostaining for CK5/6 was positive in all the investigated cases in bilayer epithelial basal cells, both in the structure of the cysts and the papillae. In the case of the immunostaining for p63 we noticed limited nuclear positivity in the basal cells, while the columnar cells' nucleus were negative. The immunohistochemical study of the bilayer epithelial component of Warthin tumor showed different immunstaining of the two types of epithelia, the oncocytary columnar and the basal on, similar to those found in the salivary gland ducts.
AuthorsLuminiţa Dăguci, A Stepan, Veronica Mercuţ, C Dăguci, Marilena Bătăiosu, Alma Florescu
JournalRomanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie (Rom J Morphol Embryol) Vol. 53 Issue 3 Pg. 603-7 ( 2012) ISSN: 1220-0522 [Print] Romania
PMID22990554 (Publication Type: Journal Article)
Chemical References
  • Biomarkers, Tumor
  • CKAP4 protein, human
  • Membrane Proteins
  • Keratins
Topics
  • Adenolymphoma (genetics, metabolism, pathology)
  • Adult
  • Aged
  • Biomarkers, Tumor (biosynthesis)
  • Female
  • Humans
  • Immunohistochemistry
  • Keratins (biosynthesis)
  • Male
  • Membrane Proteins (biosynthesis)
  • Middle Aged

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