ArticleCase reports in women's health2026
Chronic tubal ectopic pregnancy with undetectable serum β-hCG mimicking a large ovarian endometrioma: A case report.
Article in Case reports in women's health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Ectopic pregnancy is usually associated with detectable serum β-human chorionic gonadotropin levels. A rare case of chronic tubal ectopic pregnancy with undetectable beta human chorionic gonadotrophin (β-HCG) that mimicked a large ovarian endometrioma is reported. A 34-year-old multiparous woman presented with prolonged abnormal uterine bleeding and chronic pelvic pain following a 45-day delay in menstruation. Imaging revealed a large complex left adnexal mass measuring 12 × 10 × 7 cm, highly suggestive of ovarian endometrioma. Surgical exploration demonstrated a densely adherent adnexal mass requiring left salpingo-oophorectomy. Histopathological examination confirmed chronic tubal ectopic pregnancy. This case highlights that ectopic pregnancy should remain in the differential diagnosis of adnexal masses even when serum β-hCG is undetectable.
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