Abdominal Wall Endometriosis in a Rhesus Macaque (Macaca mulatta).
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This report details a case of abdominal wall endometriosis in a rhesus macaque following cesarean section, presenting with specific microscopic and immunohistochemical findings.
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Abstract
Endometriosis is the presence of endometrium outside of the uterus. Although endometriosis occurs in both pelvic and extrapelvic locations, extrapelvic locations are less common. The development of abdominal wall or incisional endometriosis in women is associated with gynecologic surgeries and is often misdiagnosed. Because they naturally develop endometriosis similar to women, Old World NHP, including rhesus macaques, provide excellent opportunities for studying endometriosis. Here, we describe a case of abdominal wall endometriosis in a rhesus macaque that had undergone cesarean section. Microscopically, the tissue consisted of pseudocolumnar epithelium-lined glands within a decidualized stroma, which dissected through the abdominal wall musculature and into the adjacent subcutaneous tissue. The stroma was strongly positive for vimentin and CD10 but was rarely, weakly positive for estrogen receptors and negative for progesterone. Close examination of extrapelvic endometriosis in rhesus macaques and other NHP may promote increased understanding of endometriosis in women.
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References (11)
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Source provenance
- europepmc
- last seen: 2026-06-04T01:30:01.192114+00:00
- openalex
- last seen: 2026-06-04T00:00:01.174412+00:00
- pubmed
- last seen: 2026-05-13T22:20:25.745717+00:00
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