Solitary peritoneal metastasis of gastrointestinal stromal tumor: A case report

Figure 1 Contrast-enhanced computed tomography. Contrast-enhanced computed tomography showing a slightly enhanced mass (diameter: 12 mm) located between the dorsal side of the right hepatic lobe and right kidney.

Figure 2 Magnetic resonance imaging. Diffusion-weighted magnetic resonance imaging showing high signal intensity (A) and a uniform contrast effect (B).

Figure 3 Positron emission tomography/computed tomography. Positron emission tomography/computed tomography showing a tumor mass with fluorine-18 2-deoxy-2-fluoro-D-glucose accumulation, with a standardized uptake value of 5.5.

Figure 4 Surgical findings. A: No tumor due to retroperitoneal or intraperitoneal dissemination is seen; B: We performed laparoscopic tumor resection.

Figure 5 Immunohistochemical staining of the tumor specimen. A: Immunohistochemical staining of the tumor specimen. Staining showed positivity for c-kit; B: The MIB-1 Labeling index was approximately 15%-20%.