Investigations noted mildly deranged transaminases, a raised carcinoembryonic antigen level (330 000 ng/mL [to convert to μg/L, multiply by 1.0]), and normal cancer antigen 19.9 and cancer antigen 125 levels. Colonoscopy results were normal. Computerized tomography demonstrated a multiloculated cystic mass rising from the central pelvis. This extended upwards into the lower abdomen. The mass showed multiple cysts of varying size seen as regions of low attenuation with the soft-tissue components (seen as irregular material of high attenuation between the cysts) (Figure 1).