3. On examination the tumor may have the following characteristics: painless nodule, shiny and waxy, indurated, firm and immobile, pearly, rolled border, and small telangiectatic vessels.
4. One patient developed a painful umbilical nodule 1.5 years after an uncomplicated colectomy. Another suffered an indurated umbilical nodule associated with an obstructive sigmoid colon cancer.
5. One patient developed a painful umbilical nodule 1.5 years after an uncomplicated colectomy. Another suffered an indurated umbilical nodule associated with an obstructive sigmoid colon cancer.