Calcified "Sister Mary Joseph" umbilical metastasis from ovarian cystadenocarcinoma seen on an MDP bone scintigram

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. This case presentation emphasizes the importance of increased awareness of interpreting radiologists of a seemingly benign appearing imaging finding such as umbilical calcification on CT as a sign of intra-abdominal/pelvic malignancies.

FDG PET/CT Imaging of Calcified Sister Mary Joseph Nodule

Sister Mary Joseph nodule (SMJN) refers to any metastatic deposit in the periumbilical region. Herein, we report a very rare case of calcified SMJN from ovarian papillary serous adenocarcinoma showing intense FDG uptake.

Umbilical concretion

Umbilical concretion is a rarely encountered benign entity. Concretions typically form within an umbilical cleft which is unusually deep and consist of keratinaceous and sebaceous material. Lack of attention to umbilical hygiene usually plays a role in their formation. Concretions are generally asymptomatic and may only present clinically when complicated by inflammation or infection. Their appearance on imaging studies may be problematic for the radiologist given their rarity, particularly in the setting of a known or suspected intra-abdominal malignancy.