Primary umbilical endometriosis (Villar's nodule) - case study, literature revision

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This case study presents a rare instance of primary umbilical endometriosis (Villar's nodule) in a young, nulliparous patient, discussing its diagnosis, differential diagnosis, and surgical treatment.

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Abstract

Spontaneous umbilical endometriosis, also known as Villar's nodule, is an unusual location of the endometrial tissue.Whilst in the case of umbilical locations secondary to surgical procedures endometriosis occurs quite frequently,the frequency of the primary umbilical location is lower than 1% of all endometriosis locations. The authors present such a case diagnosed in a young, nulliparous patient with no history of surgical procedures, the diagnosis being suggested by the presence of an umbilical tumor mass whose symptomatology concurs with menstrual periods. The aspects regarding differential diagnosis and the therapeuticoptions for the surgical cure of this type of lesion are discussed.

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Condition tags

endometriosis

MeSH descriptors

Endometriosis Endometriosis Endometriosis Endometriosis Endometriosis Menstrual Cycle Menstrual Cycle Umbilicus Umbilicus Umbilicus Umbilicus Umbilicus Adult Adult Diagnosis, Differential Diagnosis, Differential Female Female Humans Humans

Citation neighborhood (2-hop)

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. Outer rings show 2-hop neighbours — papers reached through the immediate citers/citees. [ collapse to 1-hop ]

References (7)

Cited by (12)

Source provenance

europepmc
last seen: 2026-10-12T06:17:10.165071+00:00
openalex
last seen: 2026-06-10T17:14:06.276822+00:00
pubmed
last seen: 2026-10-08T21:14:10.100512+00:00
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