Umbilical Endometriosis in the Absence of Previous Surgery: A case report
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Abstract
The abdominal wall is the commonest site of extrapelvic endometriosis, which usually develops with prior surgical scar. An estimated incidence of umbilical endometriosis is around 0.5% - 1%, a rare condition. We illustrate a case of a 41-year-old woman, nulliparous, primary infertility for 15 years, without significant medical or surgical history, had been suffering from an umbilical skin lesion and cyclical bleeding from the umbilicus for 6-month duration. It was associated with pelvic pain and related to menstrual cycle. Physical examination revealed a skin-colored mass measuring around 3 x 2 cm in size, located at the umbilicus. An ultrasonographic examination of the abdomen revealed an ill-defined hypoechoic collection at the umbilical region and a right ovarian cyst measuring around 4 x 3 cm with a ground glass appearance. Laparoscopic surgery and surgical exploration confirmed the presence of these lesions where the umbilical mass did not communicate with the peritoneal cavity. Surgical excision of the umbilical mass was done and histopathology examination confirmed that the lesion was consistent with endometriosis.
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