[A case of ulcerative colitis complicated by disseminated intravascular coagulation that improved markedly after surgery].

A 57-year-old man presenting with severe ulcerative colitis (UC) complicated by disseminated intravascular coagulation (DIC) was referred to our hospital. Since it was difficult to improve DIC immediately with any medical treatment, total proctocolectomy, ileoanal canal anastomosis, and ileostomy were performed on the patient. Soon after the surgery, his platelet count and coagulability improved, and he recovered from DIC.

[Surgical treatment for ulcerative colitis in patients over 70 years of age].

The clinical course of 104 patients with ulcerative colitis who underwent primary surgery at ≥70 years was retrospectively examined. Pre- and postoperative patient conditions determined the choice of surgical procedure. Approximately half of the patients underwent restorative proctocolectomy, resulting in relatively good defecation function.

Postoperative results and complications of fecal diversion for anorectal Crohn's disease.

Purpose: Fecal diversion is a less-invasive technique that can alleviate symptoms in patients with refractory anorectal Crohn's disease. However, complications, including recurrence of residual anorectal Crohn's disease, may develop. We aimed to evaluate the postoperative results and complications associated with fecal diversion in patients with refractory anorectal Crohn's disease.

[A case of a patient with Crohn's disease who had vaginal delivery after abdominoperineal resection for severe anorectal complications].

We report the case of a young female patient with Crohn's disease case who had vaginal delivery after abdominoperineal resection for severe perianal disease. The patient had Crohn's disease with anorectal complications for 13 years and underwent abdominoperineal resection for anorectal stenosis, complex anal fistula, and rectovaginal fistula in her early twenties. Seven years later, she got pregnant and gave birth to a healthy boy by vaginal delivery.

A Study of the Right Colonic Vascular Anatomy: Correlations between Veins and Arteries.

Objectives: Few studies have examined the correlations between the arteries and veins of the right colon. In this study, we aimed to use high-resolution CT scans to understand the vascular anatomy of Henle's gastrocolic trunk and review the terminology describing the arteries and veins of the right colon.

Methods: This retrospective study has examined patients who underwent laparoscopic colectomy for right colon cancer in a single institution in Japan.

[Pregnancy and delivery in patients with Crohn's disease who had a history of abdominal surgery].

Objective: A few studies have focused on pregnancy and childbirth in patients with Crohn's disease (CD) who had a history of abdominal surgery. The objective of this study is to analyze the problems of pregnant patients with CD with a history of abdominal surgery.

Methods: The rates of pregnancy-related complications and adverse birth outcomes were retrospectively analyzed in 29 patients with CD (45 pregnancies) with previous intestinal surgery.

Subtotal colectomy for refractory ulcerative colitis with COVID-19 infection; a first case report in Japan.

We report a 60-year-old male who was transferred to our hospital for the operation because of refractory ulcerative colitis (UC). He was diagnosed to be infected with COVID-19 for SARS-CoV-2 PCR test positive at the time of transfer. We determined emergency operation because his general condition was poor such as malnutrition and ADL decline due to exacerbation of UC and air embolization by central venous catheter removal.

Clinicopathological and prognostic evaluations of anorectal cancer after fecal diversion for patients with Crohn's disease.

Purpose: Colorectum diversion with a proximal stoma is often the preferred surgical approach in patients with Crohn's disease-related anorectal lesions or refractory colitis. To date, few studies have assessed the incidence and prognosis of cancer in the diverted anorectal segments. This study aimed to evaluate the clinical characteristics and prognosis of anorectal cancer associated with Crohn's disease following fecal diversion.

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.

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.

Grade 3 well-differentiated neuroendocrine tumor of the rectum: a case report.

Background: The 2019 revised World Health Organization (WHO) classification of tumors of endocrine organs classifies grade 3 gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN G3) into well-differentiated tumors (NET G3) and poorly differentiated carcinomas (NEC G3). There are few reported cases of NET G3 occurring in the rectum.

Case Presentation: A 71-year-old man complained of bright red blood in his stool.

The role of apical lymph node metastasis in right colon cancer.

Background: The role of apical lymph node (APN) metastasis in colorectal cancer remains controversial. The main purpose of this study is to explore the prognostic value of APN metastasis in patients with right colon cancer.

Methods: This is a retrospective study of patients with stage III right colon cancer between April 2007 and December 2016.

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.

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).

[A case of ulcerative colitis in an 86-year-old woman undergoing restorative proctocolectomy with ileal pouch-anal canal anastomosis].

An 86-year-old woman was diagnosed with ulcerative colitis (UC) in the 1970s. A colonoscopy performed 40 years thereafter revealed a 0-Is lesion in the upper rectum, and pathological examination showed well-differentiated adenocarcinoma. The lesion was diagnosed as colitic cancer based on the pathological findings and the 40-year interval since the diagnosis of total colitis type of UC.

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.