Calcified Sister Mary Joseph nodule as the presenting complaint of advanced low-grade serous ovarian cancer.

A healthy 38-year-old woman presented with a hard umbilical mass that has been growing for a few months in duration with no other significant symptoms and signs. Computed tomography images identified a lobulated densely calcified umbilical mass, left ovarian cysts, a subcentimeter calcified omental nodule, and nonspecific punctate pelvic calcifications. Histopathology of the mass revealed low-grade serous carcinoma with postsurgical diagnosis of International Federation of Gynecology and Obstetrics (FIGO) stage IV ovarian cancer.