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Updated: Feb 20, 2026

Surgical Trunk Oriented Laparoscopic Right Hemicolectomy (ST-LRH) for Right-Sided Colon Cancer
Published on: July 25, 2025
Laparoscopic hemicolectomy for a patient with situs inversus totalis: A case report
Kazuhito Sasaki1, Hiroaki Nozawa1, Kazushige Kawai1
1Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, Japan.
Introduction:
Situs inversus totalis (SIT) is a rare congenital anomaly in which the left and right aspects of the thoracic and intra-abdominal organs are inverted, like a mirror image. Surgical procedures in a patients with SIT is difficult as their anatomy is abnormal. In particular, laparoscopic procedures are considered more difficult in patients with SIT because of the mirror-image anatomy.
Presentation Of Case:
The patient was a 75-year-old woman with ascending colon cancer. Laparoscopic hemicolectomy with radical lymphadenectomy was performed. After surgery, no specific complications developed. On the ninth postoperative day, the patient was discharged from our hospital. Recognition of the inverted anatomy by the surgeon using preoperative imaging permitted safe operation using techniques not otherwise differing from those used in ordinary cases.
Discussion And Conclusions:
Laparoscopic colectomy is considered to be a safe and feasible option for patients with colorectal cancer and SIT.

