Fig. 2

Representative magnetic resonance (MR) imaging and computed tomography (CT) findings. a) Location of the main tumor by MR imaging. a-1) Ovary or fallopian tube (arrow). a-2) Peritoneum (arrow). b) Morphology of the main tumor by MR imaging. b-1) Solid: more than 50% of the main tumor is solid (arrow). b-2) Cystic: more than 50% of the main tumor is cystic (arrow). c) The amount of ascites by MR imaging. c-1) Small amount: ascites within the pelvis. c-2) Large amount: ascites beyond the pelvis. d) Pattern of peritoneal dissemination by MR imaging. d-1) Sporadic pattern: single or multiple nodules scattered sporadically in the peritoneum (arrow). d-2) Diffuse pattern: numerous nodules or masses spread diffusely along the peritoneum (arrow). e) Omental cake by CT: abnormally thickened greater omentum (arrow)