A 59-year-old man presented to our surgical clinic with a long-standing history of heart burn, and upper abdominal pain. Gastroscopy showed a large sliding hiatus hernia associated with severe reflux oesophagitis. Oesophageal pH manometry revealed a high DeMeester score of 36.03. A computed tomography (CT) scan was performed for preoperative hiatal hernia repair planning. This showed the incidental finding of an accessory left hepatic artery (ALHA) and an aneurysm of this accessory artery. The aneurysm occurred at the point where the ALHA traversed the diaphragmatic crus and was only present in association with the hiatus hernia. These observations suggest that the aetiology of the aneurysm was due to traction during development of the hiatus hernia. The patient went onto have a laparoscopic hiatus hernia repair and Toupet fundoplication with ligation of the accessory left hepatic artery and made an excellent recovery. ALHAs are not uncommon, occurring in around 15% of the general population, with aneurysms of the hepatic arteries accounting for about 20% of cases of visceral artery aneurysms. The case presented herein highlights the importance of performing an arterial phase CT when planning surgery for large hiatus hernias to detect more cases like this one. This would allow early detection and concurrent treatment of an associated aneurysm with repair of the hiatus hernia, to prevent aneurysmal complications later on.
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