We describe a 45-year-old woman with a 20-year history of endometriosis presenting with a 3-year history of intermittent cramping periumbilical and lower abdominal pain.

• 我们报告一位45岁女性病人，已有20年子宫内膜异位的病史，最近三年有间歇性肚脐周围及下腹部绞痛。