Ileocecal intussusception caused by two different tumors - which is the culprit lesion? A case report

Figure 1 Preoperative computed tomography of tumors and surgical procedure. A: Low density shadow at the distal end of the intussusception can be seen on computed tomography; B: Low-density shadow adjacent to a solid dense mass; C: Lipoma (white arrow) and tubular adenoma (yellow arrow) can be seen next to each other in postoperative specimens.

Figure 2 Histopathology of two tumors and fluorescence in situ hybridization result of lipoma. A: The tumor was separated by irregular fibers, and a large number of mature fat cells with hyperchromatin were observed. Adipoblasts were scarce, and mesenchymal nuclear heteroplasmic cells (lipoma) were not observed; B: Adenoid arrangement of tumor cells, cells were columnar, monolayer or multilayer, nuclei were slightly larger, nucleoli were visible, and mitotic images were occasionally seen (tubular adenoma); C: The MDM2 gene amplification signal detected by fluorescence in situ hybridization was negative.