Anterior division of the internal iliac artery

The uterine artery arises from the anterior division of the internal iliac artery usually close to, or in common with the middle hemorrhoidal or vaginal artery. There are several configurations for the origin of the uterine artery. It can be the first... 

In the description of the vascular anatomy by Pelange et al. (1999), the vesical artery arises from the anterior division of the internal iliac arteries, sometimes from a common trunk with the uterine artery. The vesical branches supply 80% of the blood flow to the bladder. 

Anatomic Considerations The internal pudendal artery, a terminal branch of the anterior division of the internal iliac artery supplies the external genitalia. With extension to inguinal and iliac lymph nodes, additional supply originates from the obturator branch of the internal iliac artery, the inferior epigastric artery from the external iliac artery and the superficial epigastric artery and the superficial and deep external pudendal branches of the common femoral arteries. 

At times, redistribution of supply can be accomplished by selective occlusion of smaller branches of the common femoral arteries so that the entire neoplasm can be infused from the bilateral anterior divisions of the internal iliac arteries. If this is not possible, only a portion of the tumor can be treated on each occasion. Another alternative is the injection of a bolus of the chemotherapeutic agent or combination of agents into each vessel dividing the total dose according to the estimated percentage of supply. 

Anatomic Considerations The uterus, corpus, and cervix are supplied by the uterine arteries, which originate from the anterior divisions of each internal iliac artery. It usually has a U configuration the descending portion along the pelvic side walls, the transverse portion becomes more tortuous with pregnancies and with age, and the ascending portion. 

The uterine blood supply is primarily from the uterine arteries. The uterine arteries arise as branches of the internal iliac (hypogastric) arteries. In most cases, the internal iliac artery divides into a posterior division that gives off the iliolumbar, the lateral sacral and the superior gluteal arteries and an anterior division that gives rise to parietal branches (the obturator, inferior gluteal and internal puden-... 

Technical Considerations The placement of the catheters in both internal iliac arteries, selectively into the main trunks, the anterior divisions, the vaginal arteries from the pudendals or the uterine arteries depends on the blood supply to the tumors and the flow distribution as evaluated by angiography, radionuclide flow study, and CT angiography. 

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