A ruptured large extraluminal ileal gastrointestinal stromal tumor causing hemoperitoneum

Figure 1 CT scan demonstrating a large heterogeneous mass with a non-uniform enhancement pattern (white arrow) in the pelvis and hemoperitoneum (black arrows).

Figure 2 Macroscopic finding of the tumor. A: A large tumor (measuring 13 cm × 11 cm) arising from the ileum with extraluminal growth; B: The cut surface showing bleeding blood clots in the tumor.

Figure 3 Microscopic findings of the tumor. A: Histological examination demonstrating interlaced bundles of large Bizarre spindle cells without mitotic figures (HE, × 100); B: Tumor cells present in the subserosa (black arrow) (HE, × 20).