Figure 5d. Angiomyolipoma in a 68-year-old man with hemostatic shock, acute anemia, and right-sided abdominal pain. (a-e) Contrast-enhanced axial source image (a), coronal (b) and sagittal (c) MPR images, posteroanterior MIP image (d), and posterior VR image (e) show contrast material extravasation (arrowheads) from the upper right renal pole into a large retroperitoneal hematoma. The lesion (arrow) in the upper renal pole has attenuation characteristic of angiomyolipoma. Note that the MIP image shows only the vessels and extravasation, whereas the VR image depicts adjacent organs as well as the lesion. (f) Angiogram from catheter angiography performed after therapeutic embolization helps confirm the cessation of bleeding at the lesion site (arrow).