Endometriosis of Right Inguinal Subcutaneous Tissue

Hiroyuki Tsuchie, Takenori Tomite, Kyoji Okada, Naohisa Miyakoshi, Hiroyuki Nagasawa, Shuichi Chida, Hiroshi Nanjo, Yoichi Shimada
In: Journal of Medical Cases · 2016 · vol. 7(3) , pp. 98–101 · doi:10.14740/jmc.v7i3.2428 · W2290483299
article OA: green CC0
🔓 Open OA copy View on OpenAlex View at publisher
⚙ AI-generated summary by claude@2026-06, 2026-06-08 ⓘ

This case report describes endometriosis in the right inguinal subcutaneous tissue of a 45-year-old woman presenting with cyclical pain and a mass, confirmed via excisional biopsy.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

⚙ AI-generated deep summary by claude@2026-06, 2026-06-08 ⓘ

This paper reports an unusual case of endometriosis located in the right inguinal subcutaneous tissue of a 45-year-old Japanese woman who presented with a painful, ill-defined right inguinal mass whose symptoms fluctuated with the menstrual cycle. Using physical examination and MRI (showing variable/iso-signal findings on T1- and T2-weighted sequences), the lesion was initially suggestive of desmoid or another soft tissue tumor, leading to a wide-margin excisional biopsy. Histology demonstrated glandular structures within dense fibrous tissue and estrogen-positive epithelium, establishing the diagnosis of endometriosis, and the patient reported pain relief with no recurrence at 30 months; the authors emphasize that MRI alone can be non-diagnostic. This paper is centrally about endometriosis — it describes inguinal subcutaneous endometriosis mimicking a tumor.

Read from the paper's body, not the abstract. Not a substitute for reading the paper. No clinical advice. How this works

Abstract

Endometriosis is usually found in intrapelvic structures such as ovaries, pelvic peritoneum and Douglas pouch. We report an unusual case of endometriosis in the right inguinal region. A 45-year-old Japanese woman complained of pain and a mass in the right inguinal region, and her symptoms fluctuated with the menstrual cycle. A poorly defined and elastic hard mass was palpable in the right inguinal region. Magnetic resonance imaging (MRI) showed mass in front of the pubis measuring 2 × 1 cm at the lower edge of the rectus abdominis muscle. We performed an excisional biopsy and pathological diagnosis was endometriosis. After the operation, she was relieved from pain and did not show any recurrence at the latest follow-up 30 months after the surgery. In patients with an inguinal subcutaneous mass complaining of periodic change of symptoms, endometriosis should be considered as a differential diagnosis. Since endometriosis can show variable signals on MRI, histological examination including biopsy is mandatory. J Med Cases. 2016;7(3):98-101 doi: http://dx.doi.org/10.14740/jmc2428w

My notes (saved in your browser only)

Condition tags

endometriosis

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

References (10)

Source provenance

openalex
last seen: 2026-06-10T17:14:06.276822+00:00
License: CC0 · commercial use OK