Single-port laparoscopic surgery for cecum cancer with intussusception: a case report.

Background: Most adult cases of intussusception are caused by colorectal cancer, and emergency surgery is performed when symptoms such as abdominal pain and vomiting are present. The patient must customarily undergo both bowel decompression and radical surgery for colorectal cancer at the same time, and laparotomy is generally the procedure of choice.

Case Presentation: An 86-year-old woman presented to our hospital with diarrhea and bloody stools.

Does Pathological T-Factor Affect Long-term Prognosis of Locally Advanced Colorectal Cancer Treated With Laparoscopic Multivisceral Resection?

Background/aim: Locally advanced colorectal cancer (LACC) has poor long-term outcomes. Our hypothesis was that the pathological tumor depth would affect postoperative outcomes in patients who underwent multivisceral resection with clear margins (R0). The aim of this study was to analyze short- and long-term outcomes in patients who underwent multivisceral resection for LACC, comparing between T3 and T4 stages.

Prognostic Utility of Geriatric Nutritional Risk Index After Curative Resection of Colorectal Cancer: A Propensity Score-matched Study.

Background/aim: The geriatric nutrition risk index (GNRI) is a presumptive prognosticator in a variety of carcinomas. We investigated whether it similarly predicts outcomes of elderly patients with colorectal cancer (CRC).

Patients And Methods: A total of 904 older adults (≥65 years) undergoing radical resections of CRC between April 2011 and December 2015 proved eligible for study.

The first single-incision plus one-port transverse colon resection using Senhance Digital Laparoscopy System: a case report.

Background: We have introduced the Senhance Digital Laparoscopy System and actively use for colorectal cancer surgery. Recently, we also try to perform surgery by reduce port as less invasive method. For the first time, we report a case of single-incision plus one-port transverse colectomy using Senhance system.

Impact of Lymphovascular Invasion in Patients With Stage II Colorectal Cancer: A Propensity Score-matched Study.

Background/aim: Whether lymphovascular invasion (LVI) is a high-degree risk factor in stage II colorectal cancer has not been fully clarified, as different results have been reported in the literature. If LVI is a risk factor, postoperative chemotherapy may be recommended. The purpose of this study was to evaluate the impact of lymphovascular invasion on disease recurrence and patient prognosis in conjunction with stage II colorectal cancer (CRC).

The Significance of Lateral Lymph Node Metastasis in Low Rectal Cancer: a Propensity Score Matching Study.

Background: The indications for lateral lymph node dissection (LLND) in rectal cancer have been controversial. The purpose of this study was to clarify the significance of lateral lymph node metastasis in low rectal cancer.

Methods: This was a retrospective study at a high-volume cancer center in Japan.

Right hemicolectomy with D3 lymph node dissection for right-sided transverse colon cancer using the Senhance robotic system: a case report.

Background: The evolution of remote systems and artificial intelligence technology has led to increase in robotic surgeries. One system used in this case report is the Senhance robotic system. The most important premise for using robotic surgery in cancer therapeutics is to ensure oncological safety.

A long-term survivor of clear cell sarcoma-like tumor of the gastrointestinal tract with liver metastasis: a case report.

Background: Clear cell sarcoma-like tumor of the gastrointestinal tract (CCSLTGT) is extremely rare. It is a mesenchymal neoplasm that usually forms in the small intestine of adolescents and young adults, is prone to local recurrence and metastasis, and has a high mortality rate. We report a patient with CCSLTGT with lymph node- and liver metastases, who continues to survive 6 years after initial surgical resection.

Prognostic Utility of Apical Lymph Node Metastasis in Patients With Left-sided Colorectal Cancer.

Background: Unlike the tumor nodes metastasis (TNM) lymph node classification, based solely on counts of nodal metastases, the Japanese system of classifying colorectal carcinoma (CRC) focuses on regional lymph node spread. In this study, we explored the prognostic utility of inferior mesenteric artery (IMA) apical lymph node (APN) metastasis.

Patients And Methods: This was a retrospective study of patients with stage III left-sided CRC.

E-PASS Scoring System May Be Useful for Prediction of Postoperative Complications in Super Elderly Colorectal Cancer Surgery Patients.

Objectives: Japan is facing an aging society. Elderly individuals are generally more prone to comorbidities and have weaker immune defenses, with ominous prognostic implications if postoperative complications arise. The aim of this study was to explore scoring systems for predicting postoperative morbidity risk in super elderly patients (≥85 years old) after colorectal surgery for cancer.

Better Cancer-specific Survival in Younger Patients With Stage III Colorectal Cancer: A Propensity Score Matching Study From Japan.

Background/aim: The purpose of this study was to explore the perioperative, short-term, and long-term prognostic differences in colorectal cancer (CRC) between young and older patients.

Patients And Methods: A total of 3095 patients were divided into young (≤45 years; n=139) and older (>45 years; n=2956) groups. Then, propensity score matching was performed for patients in stage I to III according to a ratio of 1:1.

A first case of ileocecal resection using a Senhance Surgical System in Japan.

Background: Several manufacturers are in the process of developing various innovative systems and expect more options in the robot market. One of the latest systems, the Senhance® platform (TransEnterix Surgical Inc, Morrisville, NC, USA), has already been introduced in Europe and has also been approved for clinical use in Japan. We report the first case of colorectal resection using Senhance in Japan.

[A Case of Laparoscopic Ileocecal Resection for Ascending Colon Cancer with Portosystemic Shunt].

A 72-year-old woman who underwent colorectal endoscopy because of positive fecal occult blood test results was diagnosed with ascending colon cancer.Preoperative CT revealed advanced ascending colon cancer and portosystemic shunt between the ileocecal vein and inferior vena cava.It was necessary to cut the shunt when ileocecal resection was performed.

Does signet ring cell carcinoma component signify worse outcomes for patients with colorectal cancer?

Aim: The purpose of this study was to elucidate the differences in clinical pathology and prognosis between signet ring cell carcinoma component and adenocarcinoma in colorectal cancer.

Materials And Methods: From April 2007 to December 2016, a total of 4348 patients with colorectal cancer underwent surgery, of which 3283 were included in the study. One patient was diagnosed with signet ring cell carcinoma (SRCC); 16 were diagnosed with signet ring cell carcinoma component (SRCCc); and 3266 patients were diagnosed with adenocarcinoma (ADC).

Left colon as a novel high-risk factor for postoperative recurrence of stage II colon cancer.

Background: It is not clear whether stage II colon and rectal cancer have the same risk factors for recurrence. Thus, the purpose of this study was to identify the risk factors for postoperative recurrence in stage II colorectal cancer.

Patients And Methods: We retrospectively analyzed the data of 990 patients who had undergone radical surgery for stage II colorectal cancer.

Intestinal endometriosis treated by laparoscopic surgery: case series of 5 patients.

Background: Intestinal endometriosis is rare and most frequently involves the rectum and sigmoid colon.

Case Presentation: Here, we report a case series of 5 patients who underwent laparoscopic resection for intestinal endometriosis. None of the patients developed postoperative complications, and all were discharged at 5-8 days after surgery.

Mucinous Adenocarcinoma as a High-risk Factor in Stage II Colorectal Cancer: A Propensity Score-matched Study from Japan.

Background/aim: The purpose of this study was to investigate the clinical, pathological, and prognostic differences between adenocarcinoma (ADC) and mucinous adenocarcinoma (MUC) in colorectal cancer (CRC).

Patients And Methods: This was a retrospective study of a Japanese high-volume cancer Center over a 10-year period. From April 2007 to December 2016, a total of 3,296 patients with primary CRC were included in the study.

Persistent Descending Mesocolon as a Key Risk Factor in Laparoscopic Colorectal Cancer Surgery.

Background: Persistent descending mesocolon (PDM) is a rare colonic anatomical variant. However, PDM's impact on the technical aspects and outcomes of laparoscopic colorectal cancer resection are unclear.

Patients And Methods: This retrospective clinical cohort study was conducted at a high-volume cancer center in Japan to evaluate intra- and postoperative outcomes of laparoscopic colorectal cancer surgery in patients with (PDM+) or without (PDM-) PDM over the past 7 years.

Diverting Stoma No Diversion in Laparoscopic Low Anterior Resection: A Single-center Retrospective Study in Japan.

Background/aim: The purpose of this retrospective study was to describe the benefits and risks of a diverting stoma (DS) in laparoscopic low anterior resection (LAR) for rectal cancer.

Materials And Methods: A total of 140 and 167 patients without and with DS, respectively, were included in this study in a high-volume cancer center of Japan within an 8-year period.

Results: Small bowel obstruction occurred more frequently in patients with DS (2.

Laparoscopic surgical management of a mature presacral teratoma: a case report.

Background: Mature presacral (retrorectal) teratoma is very rare. We report a case in which a mature retrorectal teratoma in an adult was successfully treated with laparoscopic surgery.

Case Presentation: A 44-year-old woman was diagnosed with a presacral tumor during a physical examination.

A successful case of laparoscopic colorectal cancer resection in an elderly patient with factor XI deficiency.

Background: Congenital XI factor deficiency is a rare disease caused by autosomal recessive inheritance. Clinically, there are few spontaneous hemorrhages, which can cause abnormal bleeding after trauma, surgery, and tooth extraction. We experienced a colon cancer patient with congenital XI factor deficiency who was successfully treated by laparoscopic approach with the administration of the preoperative fresh frozen plasma (FFP).