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Study 52 of 57HCG (Human Chorionic Gonadotropin) literaturebiorxiv-preprint · Case report2026

Case reports of old ectopic pregnancies with intrauterine devices

Even if serum β-hCG levels are negative, chronic ectopic pregnancy should be considered in patients with intrauterine devices.

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Where it sits

this study against the rest of the hcg (human chorionic gonadotropin) corpus
9
Preclinical
43
Observational · this one
0
Open-label
3
Randomised
2
Reviews

Summary and findings

This paper presents a case of chronic ectopic pregnancy (CEP) in a 35-year-old woman, characterized by a large pelvic mass and low serum β-hCG levels. The case emphasizes the need for thorough diagnostic testing despite negative β-hCG results. No treatment outcomes are reported.

How much of this paper we could read: full text read (0.70). We had a clear abstract, so the summary below closely tracks the paper. What this means →
Not reported in abstract.2026

Abstract

The authors’ words, as biorxiv-preprint supplied them

<title>Abstract</title> <p> <bold>Background:</bold> Chronic ectopic pregnancy (CEP)is a rare form of ectopic pregnancy, usually characterized by low levels of serum β -human chorionic gonadotropin(β-hCG). <bold>Case presentation:</bold> We report a case of CEP, presenting as a large and complex pelvic mass found in a 35-year-old woman four months after menstrual disorder, similar to a malignant ovarian tumor. <bold>Discussion and Conclusions:</bold> This case highlights the diagnostic value of multiple tests and emphasizes that even if the serum β-hCG result is negative, the importance of CEP should still be considered in the differential diagnosis of patients with intrauterine devices. </p>

Background

Not reported in abstract.

Methods

Not reported in abstract.

Results

Not reported in abstract.

Interpretation

Not reported in abstract.

Limitations

Not reported in abstract.

Elsewhere in the HCG (Human Chorionic Gonadotropin) corpus

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