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. 2019 Jul 25;31(5):766–769. doi: 10.1177/1040638719865767

Figure 1.

Figure 1.

Mycoplasma hyorhinis–associated conjunctivitis is swine. A. The peak lesions occurred in 12-wk-old pigs. In this group, there was hyperemia and mild serous discharge with blepharedema. B. The epithelium of the ocular conjunctiva is eroded and ulcerated, with exposure of the lamina propria. The conjunctival fibrous layer is markedly expanded by a lymphoplasmacytic inflammatory infiltrate, with lymphofollicular hyperplasia (asterisk) and perivascular cuffing (arrows). H&E. Bar = 100 µm. C. Green M. hyorhinis–positive signals (arrows) detected in the epithelium of palpebral conjunctiva at the early clinical stage of conjunctivitis. In situ hybridization (ISH). Bar = 50 µm. D. Green M. hyorhinis–positive signals (arrows) detected within ulcerative regions of the palpebral conjunctiva at late clinical stage of conjunctivitis. ISH. Bar = 20 µm.