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. Author manuscript; available in PMC: 2021 May 1.
Published in final edited form as: Int J Gynecol Pathol. 2020 May;39(3):261–269. doi: 10.1097/PGP.0000000000000604

Table 5: Results of immunohistochemical stains (p53 and Ki67) performed on cases called “Indeterminate for FTIN” or “Definite for FTIN”.

Indeterminate for FTIN Definite for FTIN
Slides stained 15* 12*
Concordance between Pathologists 0 8
Increased Ki67 2 (13%) 5 (42%)
Increased P53 or possible null 2 (13%) 9(75%)
  Increased P53  2  5
  Possible null  0  4
*

Two blocks were missing and thus IHC could not be performed (one Indeterminate case and one Definite case)