Topaz On, Topaz Allyne, Polkampally Pritam R, Damiano Thomas, King Christopher A
Division of Cardiology, McGuire Veterans Affairs Medical Center, Richmond, VA, USA.
Cardiovasc Revasc Med. 2010 Jan-Mar;11(1):57-62. doi: 10.1016/j.carrev.2009.09.002.
The inferior phrenic arteries constitute a pair of important vessels, supplying multiple organs including the diaphragm, adrenal glands, esophagus, stomach, liver, inferior vena cava, and retroperitoneum. The vast majority (80-90%) of inferior phrenic arteries originate as separate vessels with near equal frequency from either the abdominal aorta or the celiac trunk. Infrequently, the right and left inferior phrenic arteries can arise in the form of a common trunk from the aorta or from the celiac trunk. We herein present three patients with a new anatomic vascular variant: a common trunk of the inferior phrenic arteries arising from the right renal artery. In one case, the left inferior phrenic branch of the common trunk provided collaterals connecting with a supra-diaphragmatic branch of the left internal mammary artery and in another with the lateral wall of the pericardium. Angiographic identification of a common trunk for the inferior phrenic arteries arising from the right renal artery is important for proper diagnosis and clinical management. The presence of this unique vascular variant can impact revascularization of the renal arteries.
膈下动脉是一对重要的血管，为包括膈肌、肾上腺、食管、胃、肝脏、下腔静脉和腹膜后组织在内的多个器官供血。绝大多数（80% - 90%）膈下动脉分别起源于腹主动脉或腹腔干，出现频率相近。偶尔，左右膈下动脉可共同起源于主动脉或腹腔干形成一个总干。我们在此报告三例具有新的解剖学血管变异的患者：膈下动脉总干起源于右肾动脉。在一例中，总干的左膈下分支提供侧支与左乳内动脉的膈上分支相连，在另一例中与心包侧壁相连。血管造影识别出起源于右肾动脉的膈下动脉总干对于正确诊断和临床处理很重要。这种独特血管变异的存在会影响肾动脉的血运重建。
