Clinical Presentation

A 63-year-old woman presents with abdominal distension and pain.

(A) Frontal abdominal radiograph shows curvilinear calcifications throughout the abdomen (arrows). (B) Contrast-enhanced computed tomography in the venous phase shows scalloping of the liver margin (arrows) and nonenhancing, low-density material throughout the abdomen (arrowhead) with septations and scattered calcifications.

Differential Diagnosis

• Pseudomyxoma peritonei: