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Abstract

Umbilical endometriosis or villar’s nodule without ongoing pelvic endometriosis is
uncommon. Incidence goes up to 0.5 -1.2% of all patients with endometriosis. Only
232 cases of umbilical endometriosis have been reported worldwide. The primitive
location of this nodule at the umbilical level is rare. Its etiopathogenesis remains
unclear.
A 39 years aged, P2+0,with previous 2 vaginal deliveries with no prior history of any
surgery and not a known case of pelvic endometriosis, presented with complaining
of redness and bleeding from an umbilical nodule for last two years. These symptoms
were cyclical, flared up during mensuration and were not relieved by medication.
O/E, a 2-3cm small multinodular reddish brown pigmented mass was seen at the
umbilicus. On ultrasonography, she was diagnosed with umbilical endometriosis.
MRI was done to assess the depth of invasion. Wide excision of umbilical lesion was
performed. HPE showed endometrial glands and stroma, confirming the diagnosis
of umbilical endometriosis. Diagnosis is challenging and relies on clinical suspicion,
imaging studies, and histopathological confirmation after surgical excision.

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