Figure 30a. CT-angiographic correlation for detection of bleeding from the internal pudendal artery. (a) CT scan shows a fracture of the right inferior pubic ramus with extravasation of contrast material (arrow) within a hematoma in the ischiorectal fossa. (b) Superselective angiogram obtained with a microcatheter shows active bleeding (solid arrow) from the internal pudendal artery. Note the normal angiographic blush in the perineum (open arrow).