Sister Mary Joseph’s nodule originating from endometrial carcinoma incidentally detected during surgery for an umbilical hernia: a case report

Introduction Umbilical metastasis (Sister Mary Joseph’s nodule) is rare. It is encountered in 1–3% of patients with intra-abdominal and/or pelvic malignancy, with gastric carcinoma being the commonest origin in men and ovarian carcinoma—in women. Only 27 cases of Sister Mary Joseph’s nodule originating from endometrial carcinoma have previously been documented in the literature.