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. 2024 Sep 4;56(Suppl 1):E755–E756. doi: 10.1055/a-2388-7169

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2 — Histologic appearance showing: a ileal mucosa with diffusely enlarged villi (hematoxylin and eosin [H&E] stained; magnification × 40); b ileal lamina propria filled with histiocytes (CD68 immunostaining; × 200); c histiocytic cytoplasm full of periodic acid–Shiff (PAS)-positive bacilli (PAS stained; × 200).