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. 2021 Mar 5;11(3):452. doi: 10.3390/diagnostics11030452

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Different Immunohistochemical expression patterns of AQP1 in diagnostic biopsies of high grade serous ovarian carcinomas. (A) Diffuse positivity for AQP1 showing linear and circumferential membranous staining is depicted. (B) Another serous carcinoma case showing focal staining for AQP1. Arrow indicates a neoplastic cell with linear and circumferential membranous staining. (C) Negative staining for AQP1 is depicted. Arrow indicates vascular endothelial cells which served as positive internal control. (A-B-C: IHC, LSAB-HRP, 20×).