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An 82-year-old man had been diagnosed in infancy with situs inversus totalis. In a medical check-up, he was diagnosed with sigmoid colon cancer by colonography. Chest radiography and computed tomography (CT) revealed situs inversus totalis. We performed a laparoscopic-assisted resection of the sigmoid colon with no serious complication. Preoperative three-dimensional CT findings provided useful information such as tumor location and its relationship with the feeding arteries, and image training by left-right inversion of the surgical video enabled us to perform laparoscopic surgery safely in this patient with situs inversus totalis.
Fumitaka Asahara (Mon,) studied this question.