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Single-incision laparoscopic surgery (SILS) has been used for colorectal cancer as a minimally invasive procedure. However, there are still difficulties concerning effective triangulation and countertraction. The study’s purpose was to clarify the usefulness of the colon-lifting technique (CLT) in SILS for colorectal cancer. SILS was performed for cancer(More)
Laparoscopic total gastrectomy (LTG) has been performed since 1999. Although surgical outcomes have been reported from Japan, Korea, China, and many Western countries, the effectiveness of this technique has not been conclusively established. This study therefore aimed to review the literature systematically. Our search of the research literature identified(More)
When selecting patients who are at high risk for lymph node metastasis, the detection of lymphatic vessel invasion (LVI) is important. We investigated LVI detected by D2-40 staining as a predictor of lymph node metastasis in T1 colorectal cancer. Clinicopathological factors including LVI were investigated in 136 patients who underwent colectomy with lymph(More)
In surgical treatment of elderly patients, securing the safety of surgery and radical cure must be balanced. Our purpose was to verify the safety and validity of laparoscopic surgery for the treatment of colorectal cancer in elderly patients. Patients with cTis–T4a colorectal cancer who were 75 years or older were randomized to receive open or laparoscopic(More)
Although obesity is considered as a risk factor for postoperative morbidity in abdominal surgery, its effect on the outcomes of laparoscopic-assisted colectomy (LAC) is still unclear. The technical difficulty and risk factor for postoperative complication in LAC are thought to be influenced by visceral obesity. The aim of this prospective study was to(More)
It has been reported that some patients do not have an anastomosis of a marginal artery near the rectosigmoid junction, but the frequency of this condition and its clinical significance so far remain unclear. The aim of this study was to evaluate the blood flow at the marginal artery near the rectosigmoid junction. From January 2013 to January 2014, we(More)
The aim of this study was to assess the usefulness of intraperitoneal lavage cytology (lavage Cy) status before the resection of colorectal cancer as a predictive factor of peritoneal recurrence. The lavage Cy-positive [lavage Cy (+)] rate, peritoneal recurrence rate, and 5-year survival rate were examined in 298 cases of colorectal cancer in relation to(More)
Performing routine prophylactic cholecystectomy during gastrectomy in gastric cancer patients has been controversial. The frequency of cholelithiasis, cholecystitis, and cholangitis after gastrectomy has not been reported for large patient populations, so we carried out this retrospective study to aid the assessment of the necessity for prophylactic(More)
This study was designed to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) for lateral pelvic lymph-node metastasis. Eighty-four patients with primary lower rectal cancer were examined by MRI and subsequently underwent radical surgery with lateral pelvic lymph-node dissection, without preoperative treatment. Lateral lymph-node(More)
We report a case of perivascular epithelioid cell tumor arising in the rectum of a 55-year-old woman. The tumor was treated by transanal endoscopic microsurgery. After 1 year follow-up, the patient is alive with no radiologic or endoscopic evidence of recurrence. Perivascular epithelioid cell tumor is a rare mesenchymal tumor characterized by co-expression(More)