Radical treatment of Sister Mary-Joseph nodule: case report and literature review.

Sister Mary-Joseph nodule (NSMJ) is a cutaneous metastasis of the umbilicus, rare and accounts for 2-3% of the patients with advanced stages of colorectal adenocarcinoma. Here we report the observation of a 48-year-old Moroccan man, referred to our hospital to manage a painful ulcero-budding nodule of the umbilicus; computed tomography revealed that the processes infiltrated the urachus and the bladder. Laboratory parameters were normal and radical surgery was performed to remove the tumor and embryological remnant of the umbilicus.