Variation in Site of Origin of Inferior Phrenic Arteries
Journal Title: Indian Journal of Anatomy - Year 2017, Vol 6, Issue 2
Abstract
The inferior phrenic arteries, a pair of important vessels, supply multiple organs including the diaphragm, adrenal glands, esophagus, stomach, liver, inferior vena cava, and retroperitoneum. The majority (80–90%) of inferior phrenic arteries originate as separate vessels from either the abdominal aorta or the coeliac trunk. Infrequently, the right and left inferior phrenic arteries can arise in the form of a common trunk from the aorta or from the coeliac trunk. During this study 60 cadavers were dissected and variation in the site of origin of inferior phrenic arteries was noted. Out of 60 cadavers, 49 cadavers showed normal origin of inferior phrenic artery i.e. right and left inferior phrenic artery arise individually from abdominal aorta. 3 cadavers showed both inferior phrenic arteries arising from abdominal aorta as single root. 5 cadavers showed both inferior phrenic artery arising as single trunk from celiac trunk and 2 cadavers shows individual origin of right and left inferior phrenic artery from celiac trunk. 1 cadaver showed right inferior phrenic artery coming from abdominal aorta and left inferior phrenic artery coming from celiac trunk. As right and sometimes left inferior phrenic artery plays important role in the blood supply of hepatocellular carcinoma and frequently supplies HCCs located in the bare area of the liver. and as an unresectable hepatocellular carcinoma can be treated by transcatheter embolization so the knowledge of variation in origin of inferior phrenic artery is important. Other pathologic conditions including hemoptysis, diaphragmatic or hepatic bleeding due to trauma or surgery, and bleeding caused by gastroesophageal problems (eg, Mallory-Weiss tear or gastroesophageal cancer) may be related to the inferior phrenic artery. Radiologists must be familiar with the normal spectrum of inferior phrenic artery anatomy so that detection and adequate interventional management can be achieved when pathologic conditions related to the inferior phrenic artery are present.
Authors and Affiliations
Prajkta Ashok Thete
Keywords
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- EP ID EP467798
- DOI 10.21088/ija.2320.0022.6217.28
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