Sister Mary Joseph and her nodule: historical and clinical perspective.

Sister Mary Joseph's nodule is referred to a metastatic lesion of the umbilicus originating from intra-abdominal or pelvic malignant disease. Metastases from other locations have been also reported. In 1949 the English surgeon Sir Hamilton Bailey coined this term after Sister Mary Joseph (1856-1939), a superintendent nurse at St. Mary's Hospital in Rochester, Minnesota, USA, who was the first to observe the association between the umbilical nodule and intra-abdominal malignancy. In this article, we discuss both the historical and clinical perspectives of Sister Mary Joseph's nodule.