Right pelvic side wall haematoma, which displaces the bladder to the left.
This is an extraperitoneal bleed, associated with tracking of blood in the anterior paravesical space and a small amount of stranding in the lateral posterior pararenal space.
Two regions demonstrate minor arterial bleeding, in the anterosuperior and posterolateral parts, almost certainly arising from branches of the right internal iliac artery. This artery is patent proximally.