Long-term outcome of regional cooperation pathway after endoscopic submucosal dissection for early detection of new gastric cancer.

Objectives: The Cancer Control Act requires the maintenance of regional cooperation pathways (RCP) for cancer treatment. In 2008, we started RCP for early detection of new gastric cancer after endoscopic submucosal dissection (ESD). In gastric cancer treatment, RCP after surgical resection had been widely used, but little is known about RCP after ESD.

MicroRNAs associated with postoperative outcomes in patients with limited stage neuroendocrine carcinoma of the esophagus.

Esophageal neuroendocrine carcinoma (E-NEC) is an aggressive disease with a poor prognosis. The present study aimed to assess the role of surgery in the treatment of patients with resectable E-NEC, and identify a microRNA (miRNA/miR) signature in association with positive postoperative outcomes. Between February 2017 and August 2019, 36 patients with E-NEC who underwent curative surgery at the Japan Neuroendocrine Tumor Society partner hospitals were enrolled in the study.

Large esophageal gastrointestinal stromal tumors resected thoracoscopically after oral imatinib therapy: a report of two cases.

Esophageal gastrointestinal stromal tumors (GISTs) are very rare, accounting for 2-5% of all GISTs. As with other GISTs, the principle of surgical treatment is complete resection with negative margins. In addition to biological grades of GISTs itselves, local recurrence due to capsular damage is a known risk.

Primary esophageal cancer treated by esophagectomy with distal pancreatectomy: a report of three cases.

Esophagectomy and pancreatectomy are recognized as highly invasive procedures with relatively high complication rates; therefore, careful indication decisions are required. The depth of tumors invading adjacent organs, such as the aorta, vertebral body, and trachea, is defined as T4, and are estimated to have a low survival rate even after treatment. Conversely, pancreatic invasion of esophageal cancer is uncommon and not clearly defined as T4.

Efficacy of thoracotomy and thoracoscopic-assisted esophageal surgery in conversion and salvage surgeries: a retrospective study.

Background: The esophagus has no serosa; therefore, esophageal cancer may quickly invade its adjacent organs. In recent years, reports of conversion surgery (CS) and salvage surgery (SS) have described resection of esophageal cancer previously considered unresectable, with the addition of intensive preoperative chemotherapy or chemoradiotherapy. Currently, there is no established method for determining whether tumor excision is possible.

A right pulmonary vein abnormality treated with 3D CT assistance in thoracoscopic surgery for esophageal cancer: a case report.

Background: Anomalous bifurcation of the right superior pulmonary vein is an important anomaly that should be recognized not only in respiratory and cardiac surgeries, but also in esophageal surgery for the safe performance of surgery. We report a case in which thoracoscopic esophagectomy was safely performed using preoperative three-dimensional computed tomography (3D CT) imaging.

Case Presentation: An 81-year-old male patient received an upper gastrointestinal endoscopy, which revealed a 20-cm incisor at the entrance, 43-cm EGJ, and 30-mm large type 1 + IIc lesion between the 23-cm and 26-cm incisors; biopsy showed squamous cell carcinoma (SCC).

Surgical resection of undifferentiated pleomorphic sarcoma (UPS) with jejunal perforation, a suspected case of metastasis of lung cancer.

Undifferentiated pleomorphic sarcoma (UPS) in the gastrointestinal tract is rare. According to the diagnostic criteria after the World Health Organization 2013 reclassification, there has been only one case of UPS with perforation of the gastrointestinal tract. A 71-year-old man who was undergoing outpatient chemotherapy at the department of respiratory medicine of our hospital for lung cancer and brain metastasis, was admitted to our hospital with sudden high fever and abdominal pain.

CA19-9-producing esophageal adenocarcinoma originating from the esophageal cardia of the mid-thoracic esophagus: a case report.

Background: Although there are many studies on primary esophageal adenocarcinoma arising from Barrett's esophagus or ectopic gastric mucosa, reports on adenocarcinoma arising from esophageal cardiac glands are extremely rare. Herein, we report a case of mid-thoracic cancer antigen 19-9 (CA 19-9)-producing primary esophageal adenocarcinoma, which presumably originated from the cardiac glands.

Case Presentation: A 74-year-old man was referred to our department with advanced esophageal cancer, which initially presented with dyspepsia.

Laparoscopic ileo-transverse bypass may contribute to achieving curative resection for locally advanced right colon cancer: a case report.

Background: The strategy for treating obstructive colon cancers with metastatic lesions remains unclear. Herein, we report a case of laparoscopic ileo-transverse colon bypass (LITB) before preoperative chemotherapy for an obstructive right colon cancer.

Case Presentation: A 59-year-old woman was referred to our institution (Department of Gastroenterological Surgery, Chiba Cancer Center) for liver tumors detected on ultrasound.

[Intracorporeal Anastomosis in Laparoscopic Colectomy with Blood Flow Confirmation by Fluorescence Angiography].

We verified the significance of intestinal blood flow evaluation by indocyanine green(ICG)fluorescence during intracorporeal anastomosis in laparoscopic colectomy which was performed from July 2019 to December 2019 in our institute. For 11 cases of intracorporeal anastomosis, we examined the patient background, surgical results such as operation time and blood loss, evaluation of intraoperative ICG blood flow, and perioperative complications. In all cases, after the mesentery treatment in the abdominal cavity and before the intestinal incision, the blood flow of the planned anastomosis site was evaluated by ICG fluorescence observation.

[A Study of Laparoscopic Stoma Creation for Patients with Colorectal Cancer].

Unlabelled: There are few reports on laparoscopic stoma creation; we report here our experience with laparoscopic stoma creation.

Patients And Methods: Seven patients who underwent laparoscopic stoma creation between April 2019 and December 2019 were studied and their clinical outcome was evaluated retrospectively. Operation approach: We performed a colostomy in the transverse colon.

CD133 prevents colon cancer cell death induced by serum deprivation through activation of Akt-mediated protein synthesis and inhibition of apoptosis.

During the early phase of tumorigenesis, primary malignant cells survive within a low nutrition environment caused by a poorly organized vascular system. Here, we sought to determine the functional significance of CD133 in the survival of cancer cells under nutrient-poor conditions. Knockdown and overexpression experiments demonstrated that CD133 suppresses colon cancer cell death induced by serum deprivation through activation of Akt-mediated anti-apoptosis and protein synthesis pathways.

Cell-free microRNA-1246 in different body fluids as a diagnostic biomarker for esophageal squamous cell carcinoma.

Esophageal squamous cell carcinoma is a malignant tumor with unfavorable prognosis. In this study, we investigated the usefulness of microRNA (miR)-1246 detection in various body fluids as a biomarker for this disease. A total of 72 patients with esophageal squamous cell carcinoma were enrolled, and their blood, urine, and saliva samples were collected prior to treatment.

Multipanel assay of 17 tumor-associated antibodies for serological detection of stage 0/I breast cancer.

Because the production of tumor-associated antibodies (TAA) is a humoral immune response in cancer patients, serum autoantibodies may be detected even in patients with early-stage tumors. Seventeen recombinant proteins with tags in Escherichia coli (p53, RalA, p90, NY-ESO-1, HSP70, c-myc, galectin-1, Sui1, KN-HN-1, HSP40, PrxVI, p62, cyclin B1, HCC-22-5, annexin II, HCA25a, and HER2) were applied as capturing antigens in sandwich ELISA to measure serum IgG levels. Sera from 73 healthy donors and 386 patients with breast cancer, including 182 stage 0/I patients, were evaluated using cutoff values for each TAA equal to the mean +3 SD of the serum levels of healthy controls.

[Significance of Surgery for Multidisciplinary Treatment Including Neoadjuvant Chemotherapy for Locally Advanced Colorectal Cancer].

Neoadjuvant chemotherapy has been performed for locally advanced colorectal cancer with invasion to other organs or lateral lymph node metastasis in to control local recurrence and distant metastasis. We evaluated the treatment results and the significance of surgery in 53 patients(36 rectal cancer cases and 17 sigmoid colon cancer cases)who underwent surgery after chemotherapy by XELOX plus bevacizumab for 3 months. As pretreatment diagnosis, 42 cases were T4b and 39 cases were lymph node positive.

Possible predictive significance of serum RalA autoantibodies on relapse-free survival in patients with colorectal cancer.

RalA protein, a member of the Ras superfamily of small GTPases, is a tumor antigen that induces serum RalA antibodies (s-RalA-Abs). The present study explored the clinicopathological and prognostic significance of s-RalA-Abs in patients with colorectal cancer. Serum samples were obtained from 314 patients with colorectal cancer at stage 0/I (n=71), stage II (n=86), stage III (n=78), stage IV (n=64) and recurrence (n=15).

Usefulness of serum miR-1246/miR-106b ratio in patients with esophageal squamous cell carcinoma.

The function of microRNAs (miRs) is associated with the development and progression of various malignancies, with miRs presenting stably in the serum. The current study assessed the role of miR-1246 and miR-106b in the serum of patients with esophageal squamous cell carcinoma (ESCC). A comprehensive microarray analysis of miR expression was performed using the serum of patients with ESCC, which were subsequently validated via reverse transcription-quantitative PCR.

Inducing multiple antibodies to treat squamous cell esophageal carcinoma.

Background: The positive response and the clinical usefulness of 14 serum antibodies in patients with esophageal squamous cell carcinoma (ESCC) were examined in this study. The Cancer Genome Atlas (TCGA) was used to investigate the frequency of gene expressions, mutations, and amplification of these 14 antigens and also the possible effects of antibody induction.

Methods: Blood serum derived from 85 patients with ESCC was collected and analyzed for the 14 antibodies using ELISA.

Adenocarcinoma originating from long-segment Barrett's esophagus over 15 cm: a series of 3 cases.

Background: Barrett's esophagus (BE) is characterized by presence of columnar epithelium in the lower esophageal mucosa, which originally comprises stratified squamous epithelium. Gastroesophageal reflux disease causes BE and BE adenocarcinoma (BEAC); further, the incidence of BEAC is increasing, especially in developed countries. Long-segment BE (LSBE) has a particularly high carcinogenic potential and necessitates treatment, surveillance, and prevention.