Histological and Immunohistochemical Characterization of a Case of Endometriosis in a Guinea Pig (Cavia tschudii)

Figure 1

(a) Presence of ectopic endometrium in the uterine wall (H&E, original magnification ×10). (b) Cystic endometriosis present in the ovary (H&E, original magnification ×10). (c) The adenomyosis in the uterine wall is surrounded by a stromal reaction evidenced by the CD10 positivity (ABC, original magnification ×10). (d) The ectopic glandular epithelium of the cystic structure in the ovary expresses estrogen, as evidenced by immunohistochemistry with a monoclonal antibody specific for estrogen (ABC, original magnification ×10).

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