Sclafani S J, Becker J A
AJR Am J Roentgenol. 1982 Jan;138(1):123-6. doi: 10.2214/ajr.138.1.123.
Presacral hemorrhage commonly accompanies fractures of the posterior pelvic ring. The source of this bleeding is the fractured cancellous bone and supporting ligamentous structures of the sacrum and sacroiliac joint. The radiologic appearance is of granular and punctate contrast accumulations due to extravasation from the iliolumbar and lateral sacral branches of the hypogastric artery. This bleeding can be controlled by small particle embolotherapy provided care is taken not to bypass the posterior division of the hypogastric artery.
骶前出血常伴有骨盆后环骨折。这种出血的来源是骶骨和骶髂关节的骨折松质骨及支持韧带结构。放射学表现为由于来自髂腰动脉和骶外侧动脉（腹下动脉分支）的造影剂外渗而出现的颗粒状和点状造影剂积聚。如果小心操作不绕过腹下动脉后支，这种出血可通过小颗粒栓塞疗法得到控制。
