Association between infection, mismatch repair, HER2 and tumor-infiltrating lymphocytes in gastric cancer.

Background: The influence of () infection and the characteristics of gastric cancer (GC) on tumor-infiltrating lymphocyte (TIL) levels has not been extensively studied. Analysis of infiltrating-immune-cell subtypes as well as survival is necessary to obtain comprehensive information.

Aim: To determine the rates of deficient mismatch-repair (dMMR), HER2-status and infection and their association with TIL levels in GC.

Preoperative Predictors for 90-Day Mortality after Pancreaticoduodenectomy in Patients with Adenocarcinoma of the Ampulla of Vater: A Single-Centre Retrospective Cohort Study.

Background: The standard treatment for ampullary adenocarcinoma is pancreaticoduodenectomy. Identification of preoperative risk factors might help the clinician to select patients fit for resection and potentially decrease morbidity and mortality after PD. We conducted a cohort study to determine the preoperative factors related to 90-day severe morbidity and mortality after PD.

Gastrointestinal stromal tumour of the rectum and intestinal obstruction: case report.

We report the case of a 75-year-old female patient with a big tumour in the lower rectum with intestinal obstruction and lower gastrointestinal bleeding history who underwent a tumour biopsy under laparotomy and end colostomy at another hospital in Peru. She came to our institution for clinical evaluation with a pathology result of a rectal gastrointestinal stromal tumour. An extra elevator abdominoperineal resection was performed with tumour-free margins.

TransAnal Total Mesorectal Excision (TaTME) in Peru: Case series.

Introduction: Describe and demonstrate the feasibility and safety of TaTME in short term outcomes in the Instituto Nacional de Enfermedades Neoplásicas (INEN) in Peru.

Materials And Methods: Case series with retrospective and prospective data collection of patients with middle and inferior rectal cancer who underwent TaTME between January 2015 and March 2020. Patients and tumor characteristics, operative details, postoperative complications and pathological results were analyzed.

Monosegmental ALPPS: a long-term survival alternative to liver transplant in PRETEXT IV hepatoblastoma.

A 3-year-old female was treated with neoadjuvant chemotherapy (NACT) for a PRETEXT IV hepatoblastoma. POST-TEXT IV findings merited a liver transplant (LT), but multiple limitations precluded it. The initial future liver remnant (FLR) was small (21.

[Prognostic value of lymph node ratio (LNR) in patients who underwent radical gastrectomy].

Unlabelled: The study objective was to evaluate the prognostic value of lymph node ratio (LNR) in patients with gastric cancer who underwent radical gastrectomy D2.

Materials And Methods: We reviewed retrospectively 498 medical records of patients with gastric cancer who were attended at the National Institute of Neoplastic Diseases (INEN) between 2008 and 2011and met the inclusion and exclusion criteria. They were distributed into 4 groups according to their LNR, LNR0: 0, LNR1: 0-0.

[Localization of pancreatic insulinoma with ultrasonography laparoscopy].

The case of a 51-year-old woman with a clinical history of hipoglicemia caused by a presumed pancreatic insulinoma is reported. Laboratory tests pointed out for a insulinoma, but imaginologic studies could not locate the tumor. Under this circumstances, the patient was laparoscopically approached.

[Reconstruction following proximal pancreatoduodenectomy by simplified pancreatojejunal anastomosis. Operation results in 198 patients].

Introduction: The pancreatojejunal anastomosis is considered the weak spot when carrying out a duodenopancreatectomy, because it causes most of the complications following a Whipple surgery. Here we present a series of cases using a single technique for performing this anastomosis.

Material And Methods: During the period between October 2002 and August 2005, 49 duodenopancreatectomies were performed at the 3AII Department of the National Hospital Edgardo Rebagliati Martins (H.

[Laparoscopic treatment of insulinoma: surgical technique and perisurgical results].

Aim: Our experience with the laparoscopic treatment of pancreatic insulinomas is reported.

Patients And Methods: Four patients with clinical and radiological diagnosis of insulinoma were treated between January 2000 and September 2005.

Results: All the patients were laparoscopically approached to attempt the tumor enucleation.

[Central pancreatectomy. Indications and perisurgical results of a pancreatic tissue conservation technique].

Introduction: Proximal or distal pancreatectomy is the standard treatment for non-resectable benign pancreatic tumors. These procedures imply a radical resection as well as a significant loss of distal normal pancreatic tissue for the standard resection, which may cause an endocrine and/or exocrine pancreatic failure.

Purpose: Report our experience in central pancreatectomy for the treatment of benign/low malignancy potential tumors in the body and neck of the pancreas by emphasizing the indications and perisurgical results.