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Cited by 26Endometriosis Research and TreatmentGynecological conditions and treatmentsEctopic Pregnancy Diagnosis and Management

Clinical aspects and management of inguinal endometriosis: A case series of 20 patients

Arakawa, Tomoko, Hirata, Tetsuya, Koga, Kaori, Neriishi, Kazuaki, Fukuda, Shinya, Ma, Suke, Sun, Hui, Nagashima, Natsuki +5 more·2019·Journal of Obstetrics and Gynaecology Research
DOI 10.1111/jog.14059
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Abstract

Aim: This study aimed to describe the clinical presentation, diagnostic evaluation, and operative or medical management of inguinal endometriosis. Methods: In this study, we retrospectively reviewed 20 cases of inguinal endometriosis in our facility, particularly on the clinical characteristics, diagnosis, and surgical and medical treatment. Results: We retrospectively investigated the following items for each patient: age at diagnosis, surgical history, presence of extragenital endometriosis, symptoms, imaging modalities, surgical therapy, hormonal therapy, follow‐up period, postoperative recurrence and time to recurrence. We identified 20 cases of inguinal endometriosis in our facility. First, 75% of the patients had right inguinal endometriosis. Second, T1‐weighted or fat‐saturated T1‐weighted images showed hyperintensity in the lesions in 17 patients (17/18 patients, 94.4%). Third, in 5 of 6 patients who underwent surgical therapy, we performed radical surgery to excise the inguinal lesion including the round ligament. One patient had disease relapse. Fourth, in 6 of 7 cases, dienogest effectively improved pain without significant adverse effects, but oral contraceptive was effective in 1 of 4 patients without significant adverse effects. Conclusion: We retrospectively reviewed 20 patients with inguinal endometriosis in our facility. We have shown that magnetic resonance imaging can be a useful imaging modality to obtain a specific diagnosis of this disease. In addition, inguinal endometriosis can be managed with radical surgery to resect lesions including the round ligament and with hormonal treatment. In particular, dienogest ameliorated symptoms, which can be an option for patients who do not want surgery.

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Crossref · 10.1111/jog.14059

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  • Preoperative diagnosis of endometriosis associated with Nuck's canal hydrocele can be improved by identifying hyperintense sites within the lesion on T1-weighted and fat-saturated T1-weighted images.

    “it is difficult to diagnose endometriosis associated with Nuck's canal hydrocele before surgery, but preoperative diagnosis can be improved by identifying hyperintense sites within the lesion on T1‐weighted and fat‐saturated T1‐weighted images.”

    From Extra-pelvic endometriosis: a review. (2020) · cites this paper as [57]

  • In the authors' case series, in 17 of 18 patients who underwent MRI, hyperintensities were seen in T1-weighted or fat-saturated T1-weighted images.

    “In our case series, in 17 of 18 patients who underwent MRI, hyperintensities were seen in T1‐weighted images or fat‐saturated T1‐weighted images.”

    From Extra-pelvic endometriosis: a review. (2020) · cites this paper as [57]

  • There have been a few reports describing postoperative recurrence rates of inguinal endometriosis ranging from 0% to 16.6%.

    “There have been a few reports describing postoperative recurrence rates ranging from 0% to 16.6%.”

    From Extra-pelvic endometriosis: a review. (2020) · cites this paper as [57]

  • As a radical surgical treatment, en bloc resection of tumor and the round ligament has been reported.

    “As a radical surgical treatment, an en bloc resection of tumor and the round ligament has been reported.”

    From Extra-pelvic endometriosis: a review. (2020) · cites this paper as [57]

  • Administration of dienogest (2 mg/d) was associated with improved groin pain in 6 of 7 patients with inguinal endometriosis.

    “the administration of dienogest (2 mg/d) was associated with improved groin pain in 6 of 7 patients.”

    From Extra-pelvic endometriosis: a review. (2020) · cites this paper as [57]

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Authors
Arakawa, T., Hirata, T., Koga, K., Neriishi, K., Fukuda, S., Ma, S., Sun, H., Nagashima, N., Harada, M., Hirota, Y., Wada‐Hiraike, O., Fujii, T., & Osuga, Y.
Affiliations
  • The University of Tokyo (JP)
  • Doai Memorial Hospital (JP)
Corresponding author
Hirata, Tetsuya
ORCID
Venue
Journal of Obstetrics and Gynaecology Research
Publisher
Wiley
Published
2019-08-05
Volume
45
Issue
10
Pages
2029-2036
ISSN
  • 1341-8076 (ISSN-L)
  • 1447-0756
DOI
10.1111/jog.14059
OpenAlex
W2965469600
Cited by
26
References
22
Citations by year
2026: 1 · 2025: 5 · 2024: 4 · 2023: 3 · 2022: 6 · 2021: 4 · 2020: 2 · 2019: 1
FWCI
3.11
Type
journal article
Language
en
Open access
closed
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • Journal of obstetrics and gynaecology research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Japan Agency for Medical Research and Development
  • Japan Society for the Promotion of Science (18K09248, 18K19601, 17K11218, 16H04679)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Endometriosis Research and Treatment
  • Health Sciences › Medicine › Obstetrics and Gynecology › Gynecological conditions and treatments
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Ectopic Pregnancy Diagnosis and Management
Keywords
inguinal endometriosis, MRI diagnosis, surgical excision, dienogest, hormone therapy, oral contraceptives, endometriosis recurrence, extragenital endometriosis
MeSH terms
Adult, Endometriosis, Female, Hormone Antagonists, Humans, Inguinal Canal, Magnetic Resonance Imaging, Middle Aged, Nandrolone, Recurrence, Retrospective Studies, Gynecologic Surgical Procedures

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