Answer to Medical Challenge.
The answer to yesterdays Medical Challenge is...drumroll....
#4 - Intraabdominal Cancer.
The nodule is called a "Sister Mary Joseph's" nodule and is a lymphatic metastasis to the umbilical region. This 12 year old girl had decreased appetite, vomiting and weight loss. A CT scan showed a large pelvic mass originating from the ovary, hepatic metastasis, ascites and a mass through the umbilicus.
Sister Mary Joseph Dempsey (born Julia Dempsey; 1856-1939) was the surgical assistant of Dr. William J. Mayo of Mayo Clinic. She drew Dr. Mayo's attention to the nodule and he published the first article about it in 1928.