Primary Endometriosis of Umbilical Scar: Case Report and Review of Literature

Abstract

We report a case of umbilical endometriosis and review the literature about the finding. The patient was a 39-year-old woman who presented with 6 months of umbilical bleeding and pain during the first day of her period. A soft tissue ultrasound scan showed 2 superficial solid masses within the periumbilical subcutaneous adipose tissue, suggestive for ectopic endometriosis localization. We decided to remove the umbilical nodules, excising 1 cm of the surrounding tissue. Reports in the literature indicate cases of umbilical endometriosis in about 0.5%-1% of women with endometriosis.

Frequently Misdiagnosed Extrapelvic Endometriosis Lesions: Case Reports and Review of the Literature

“…Endometriosis occurring in the abdominal wall, the most frequent location of extrapelvic endometriosis, can be differentiated between 2 forms: primary and secondary (32, 35). It has been reported that 20% of cases of AWE involve women with no surgical history.…”

“…It has been reported that 20% of cases of AWE involve women with no surgical history. The most frequent location of spontaneous AWE is the umbilicus, with an incidence of 0.5%-1% of all extrapelvic endometriosis lesions (35–36–37–38).…”