PMC9672344_01
(A) An enhanced CT showed a huge mixed density mass in the lower abdominal cavity-pelvis. (B,C) Grossly, the tumor was attached to the terminal ileum, solid and cystic, with areas of necrosis and hemorrhage. (D) The tumor was histologically composed of cells arranged in the form of solid sheets and pseudopapillary areas (H & E, X 100). (E) The left adnexa showed the formation of white bodies in the left ovary (H & E, X 100). CT, computed tomography.
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F1
Abdominal enhanced computed tomography (CT) showed a large mixed density mass in the lower abdominal cavity-pelvis, approximately 162.5 mm x 105 mm x 182 mm (Figure 1A). We considered that the tumor probably originated in the small intestine (Figures 1B, C). The tumor was histologically composed of cells arranged in the form of solid sheets and pseudopapillary areas (Figure 1D). The pathology of the left adnexa showed the formation of white bodies in the left ovary (Figure 1E).
Enhanced CT of the chest and the whole abdomen showed tumor recurrence and extensive systemic metastases (A). There was a mixed density mass in the right middle abdomens, and the boundary was not clear (red arrowheads). (B) A cystic and solid mass was found next to the duodenum, irregular in shape, with unclear demarcation with the duodenum, and the solid part was significantly enhanced (red arrowheads). (C) There were several nodular and clump-shaped hypodense shadows in the liver, and the larger ones were located in the right lobe of the liver (red arrowheads). (D) There were multiple solid nodules in both lungs, and the largest one was located in the dorsal segment of the left lower lobe (red arrowheads). CT, computed tomography.
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F2
Enhanced CT of the chest and the whole abdomen showed that there was a mixed density mass in the right middle abdomen, approximately 59 mm x 57 mm x 92 mm (left and right x front and back x up and down), and the boundary was not clear (Figure 2A). The solid part was significantly enhanced (Figure 2B). There were several nodular and clump-shaped hypodense shadows in the liver, and the larger shadows were located in the right lobe of the liver (Figure 2C). There were multiple solid nodules in both lungs, and the largest nodule was located in the dorsal segment of the left lower lobe (Figure 2D).