PMC10050332_01
PMC10050332_02
CT obtained at this hospital. CT images (A, B), obtained before the administration of intravenous contrast material, show a multilobulated cystic mass compressing the liver and right kidney (arrows). The CT image (C) shows a mixed density of mass, including a calcified shadow (arrow). The CT image obtained after the injection (D) confirms that the structure was supplied by the superior mesenteric artery (arrow). CT, computed tomography.
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F1
The CT scan depicted a huge space-occupying lesion that appeared to be of mixed density, and the mass reached both the liver's lower edge and the pelvic cavity (Figures 1A,B). The lesion had a maximum diameter of 15.0 cm x 13.5 cm x 9.5 cm and showed an evident mass effect containing various densities, such as fluid (CT value -128 HU), fat (CT value 12 HU), soft tissue (CT value 38 HU), and calcification/ossification shadows (CT value 1,220 HU) (Figure 1C). The superior mesenteric artery branches extended inward, while the other large abdominal vessels and branches were compressed (Figure 1D).