case_images: PMC10999598_01
case_images: CT of midsection, with the marked areas representing lesions.
case_images: fonc-14-1323650-g001.jpg
case_images: PMC10999598_01_fonc-14-1323650-g001.jpg
case_images: f1
case_images: CT scans ( Figure 1 ) revealed a mass in the left abdominal cavity with a high probability of gastrointestinal stromal tumor.
case_images: MRI of midsection, with the marked areas representing lesions.
case_images: fonc-14-1323650-g002.jpg
case_images: PMC10999598_01_fonc-14-1323650-g002.jpg
case_images: f2
case_images: The MRI impression ( Figure 2 ) indicated a high likelihood of a malignant space-occupying lesion on the left side of the abdominal cavity.
case_images: Post-tumor resection specimen.
case_images: fonc-14-1323650-g003.jpg
case_images: PMC10999598_01_fonc-14-1323650-g003.jpg
case_images: f3
case_images: Part of the gastric wall and part of the tail pancreatic tissue were removed, and the affected colonic serous membrane was excised and restored using absorbable silk suture ( Figure 3 ).
case_images: Immumohistochemical staining.
case_images: fonc-14-1323650-g004.jpg
case_images: PMC10999598_01_fonc-14-1323650-g004.jpg
case_images: f4
case_images: The IHC staining ( Figure 4 ) results indicated the tumor as malignant epithelial one, considered as high-grade serous carcinoma, which might have originated from the female reproductive system or peritoneum. The state of the microsatellite was MSS, suggesting the stability of the microsatellite, and no corresponding immune-related medication was recommended ( Figure 4 ).