A Polyclonal Antibody to NKX3.1 Identifies Fungal Organisms From the Esophagus.

NKX3.1 is a transcription factor used to identify prostatic adenocarcinomas. We describe novel functionality for NKX3.1 compared with Grocott and periodic acid-Schiff-diastase (PASD) on esophageal biopsies. We identified esophageal biopsies on the basis of the search term "candida" from March 28, 2012 to December 27, 2013. Of 85 cases for which 3 stains were available and at least 1 stain was positive for fungus consistent with Candida, 83 cases stained as positive with NKX3.1, compared with 79 with PASD and 75 with Grocott. NKX3.1 was significantly superior to Grocott but not to PASD (P

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