A Patient with Advanced Gastric Cancer and Situs Inversus Totalis: Report of a Case

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Situs inversus totalis (SIT) is a rare congenital anomaly in which the positions of the abdominal and thoracic cavity structures are reversed. The reported incidence of SIT is one in 10,000 to 50,000 live births. There are few reports of gastric cancer in individuals with SIT or of the potential complications of surgical intervention in such cases. We report the case of a 79-year-old woman with SIT who underwent surgical treatment for advanced gastric cancer at our hospital and review the pertinent literature. Prior to surgery, abdominal computed topography angiography with 3-dimensional reconstruction was performed to uncover any variations and to verify the exact structures and locations of vessels. Total gastrectomy with D2 lymphadenectomy and cholecystectomy were performed safely and with careful consideration of the mirror-image anatomy.