Ultrasonographic findings in primary umbilical endometriosis

Genovese G; Giovanni Genovese; Passoni E; Emanuela Passoni; Veraldi S; Stefano Veraldi; Gianluca Nazzaro; Nazzaro G

doi:10.1590/abd1806-4841.20187076

Ultrasonographic findings in primary umbilical endometriosis

Genovese G, Giovanni Genovese, Passoni E, Emanuela Passoni, Veraldi S, Stefano Veraldi, Gianluca Nazzaro, Nazzaro G

Anais brasileiros de dermatologia · 2018 · vol. 93(2) , pp. 297–298 · doi:10.1590/abd1806-4841.20187076 · PMID:29723349 · PMC5916414 · W2800737932

article OA: gold CC0 ⤵ 14 in-corpus citations

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⚙ AI-generated summary by gemini-2.5-flash-lite, 2026-06-07 ⓘ

This paper describes the specific ultrasonographic findings observed in primary umbilical endometriosis, also known as Villar's nodule, to aid in its diagnosis and surgical treatment.

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⚙ AI-generated deep summary by claude@2026-06, 2026-06-07 · read from full text ⓘ

The paper reports a 42-year-old woman with primary umbilical endometriosis (Villar’s nodule) presenting as a painful umbilical nodule, despite no prior abdominal or pelvic surgery, and with a 4-year history of pelvic endometriosis. Using high-frequency ultrasonography with power Doppler, the authors describe an isoechoic, non-homogeneous roundish dermal/subcutaneous nodule with multiple hyperechoic foci and abundant intranodular vascularization, followed by surgical excision and histopathologic confirmation. They note that ultrasonographic features of primary umbilical endometriosis are not well characterized in the literature, with only three English-language ultrasound-evaluated cases previously reported, and that their observation contrasts with prior reports while also highlighting a possible association with prior ovarian stimulation (though it remains unclear). This paper is centrally about endometriosis — it specifically characterizes ultrasonographic and Doppler findings in primary umbilical endometriosis (Villar’s nodule) in a patient with coexisting pelvic endometriosis.

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Abstract

Primary cutaneous endometriosis is a rare condition. It appears without a prior history of surgical procedure and the umbilicus is the most frequently involved area. Primary umbilical endometriosis, or Villar's nodule, usually presents as a painful nodule. Its differential diagnosis may be challenging. Although histopathological assessment represents the gold standard for diagnosis, cutaneous ultrasonography may be useful in guiding the surgical treatment. Ultrasonographic features of cutaneous endometriosis have not yet been fully explored in the literature. Hence, we report peculiar ultrasonographic findings of primary umbilical endometriosis.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometriosis Skin Diseases Skin Diseases Umbilicus Umbilicus Adult Endometriosis Female Humans Skin Diseases Ultrasonography, Doppler, Color Umbilicus

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 (5)

Abdominal Wall Endometriosis: Clinical Presentation and Imaging Features with Emphasis on Sonography via openalex
Endometriosis of the abdominal wall: ultrasonographic and Doppler characteristics via openalex
Primary umbilical endometriosis: a cause of a painful umbilical nodule via openalex
Umbilical Skin Endometriosis: Treatment, Reconstruction, and Differential Diagnosis via openalex
W2043779615 via openalex

Cited by (14)

Source provenance

europepmc: last seen: 2026-08-16T09:21:09.727480+00:00
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License: CC0 · commercial use OK

[1] Abdominal Wall Endometriosis: Clinical Presentation and Imaging Features with Emphasis on Sonography via openalex

[2] Endometriosis of the abdominal wall: ultrasonographic and Doppler characteristics via openalex

[3] Primary umbilical endometriosis: a cause of a painful umbilical nodule via openalex

[4] Umbilical Skin Endometriosis: Treatment, Reconstruction, and Differential Diagnosis via openalex

[5] W2043779615 via openalex