Abstract

BackgroundSitus inversus totalis (SIT) is a rare congenital abnormality in which the thoracic and abdominal organs are reversed or mirrored from their usual positions. We herein report the first case of robot-assisted transhiatal lower esophagectomy and proximal gastrectomy with esophagogastrostomy for treatment of Siewert type II advanced esophagogastric junction (EGJ) cancer with SIT.Case presentationA 62-year-old man with SIT and intestinal malrotation was diagnosed with T3N0M0 Stage IIA EGJ cancer. Three-dimensional reconstruction of a computed tomography angiogram showed that the common hepatic artery was absent, the proper hepatic artery was derived from the superior mesenteric artery through the gastroduodenal artery, and an accessary left hepatic artery arose from the left gastric artery. The patient underwent robot-assisted transhiatal lower esophagectomy and proximal gastrectomy with D2 lymph node dissection, including lower mediastinal lymphadenectomy. Intraoperative examination revealed minor vascular abnormalities, including three branches of the left gastric artery and two left gastric veins, that had not been recognized preoperatively. The surgery was performed safely, and the patient had an uneventful postoperative course.ConclusionsRobotic-assisted surgery is efficient even for complex conditions, such as Siewert type II advanced EGJ cancer with SIT.

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