Association of Chronic Pancreatitis and Malignant Main Duct IPMN: A Rare but Difficult Clinical Problem.

We report the case of a 70-year-old woman who consulted for recurrent short episodes of mild-to-moderate abdominal pain. Dilated main pancreatic duct was seen on CAT scan and magnetic resonance, with multiple calcifications and intraductal stones, typical in CP. However, for a more pronounced cystic dilatation in the pancreatic head, we could not exclude the coexistence of a main duct IPMN.

[Recommendations for the management of pancreatic cancer type adenocarcinoma: A consensus statement reached during the 2015 Latin American Symposium on Gastroenterological Oncology].

Pancreatic cancer is a malignancy of great impact in developed countries and is having an increasing impact in Latin America. Incidence and mortality rates are similar for this cancer. This is an important reason to offer to the patients the best treatments available.

Regional differences in gallbladder cancer pathogenesis: insights from a comparison of cell cycle-regulatory, PI3K, and pro-angiogenic protein expression.

Background: The variable incidence of gallbladder cancer (GBCA) suggests regional pathogenetic differences. This study compares cell cycle-regulatory, angiogenesis-related, and PI3K pathway protein expression in GBCAs from three continents.

Methods: Immunohistochemical expression of several proteins was assessed, correlated with clinicopathologic variables, and compared among centers from Chile (Fundación Arturo López Pérez [FALP]), Japan (Yokohama City University [YCU]), and the United States (Memorial Sloan-Kettering Cancer Center [MSKCC]).

Combined total gastrectomy, total esophagectomy, and D2 lymph node dissection with transverse colonic interposition for adenocarcinoma of the gastroesophageal junction.

The surgical treatment of adenocarcinoma of the gastroesophageal junction (GEJ) is complex. A large tumor involving a substantial portion of both the esophagus and stomach requires complete resection with negative proximal and distal margins as well as D2 lymph node dissection. Some investigators have found that patients who do not undergo radical resection have a worse prognosis; however, more aggressive surgical treatments are associated with increased morbidity and mortality.

[Complications and mortality of extended gastrectomy for gastric cancer].

Background: Extended gastrectomy allows a complete tumor excision in patients with advanced gastric cancer.

Aim: To compare the surgical results of extended (ER) and non-extended gastrectomy (NER) among patients with gastric cancer, and determine factors associated with complications and mortality.

Material And Methods: Review of medical records of patients with gastric cancer who underwent complete resection between 2002 and 2008 in an oncological hospital.

Gallbladder cancer: differences in presentation, surgical treatment, and survival in patients treated at centers in three countries.

Background: Gallbladder cancer (GBCA) is a rare malignancy with a variable incidence worldwide. This study analyzed GBCA patients treated at centers in 3 countries. The aim was to assess for location-specific differences in presentation and outcomes, which might suggest differences in pathogenesis or disease biology.

Incidental gallbladder cancer: analysis of surgical findings and survival.

Background And Objectives: Incidental gallbladder cancer (IGBCA) has risen worldwide and its prognosis depends on complete radical cholecystectomy (CRC). This study evaluated surgical findings during re-operation and survival of patients with IGBCA.

Methods: Demographics, surgical treatment, staging, and survival data for all IGBCA patients who underwent surgery at Instituto Oncológico Fundación Arturo López Pérez (FALP) between 2000 and 2008 were analyzed.

The role of PET-CT in patients with incidental gallbladder cancer.

Introduction: After a cholecystectomy, incidental gallbladder cancer (IGC) requires accurate imaging studies to determine the actual extent of the disease to properly tailor subsequent treatment. The aim of this study was to evaluate the utility of (18)F-fluorodeoxyglucose positron emission tomography-computed tomography ((18)FDG PET-CT) to provide optimal pre-treatment staging in patients with IGC.

Material And Methods: Between January 2006 and August 2008, all patients with IGC and at least muscular layer invasion were studied with (18)FDG PET-CT.

[Esophageal melanoma: report of two cases].

Esophageal melanomas correspond to 0.1 to 0.2% of esophageal tumors.

[Adenocarcinoma of the esophagogastric junction: retrospective analysis of 39 patients].

Background: The long-term survival of adenocarcinoma of the esophago-gastric junction is poor and depends on the possibility of performing a complete surgical excision and the absence of lymph node involvement.

Aim: To report surgical results and survival of patients with adenocarcinoma of the esophago-gastric junction.

Material And Methods: Retrospective review of medical records of patients with adenocarcinoma of the esophago-gastric junction, subjected to a curative surgical procedure between 2000 and 2008.

[Detection of neuroendocrine tumors by positron emission tomography-computed tomography with 68Ga-DOTATATE: report of one case].

We report a 74-year-old male with liver metastases from a neuroendocrine tumor (NET) of unknown origin. Conventional imaging studies with ultrasound, computed tomography colonoscopy and Positron emission tomography-computed tomography (PET/CT) with 18Fluor odeoxyglucose did not identify the site of origin of the primary tumor. The patient was submitted for a PET/CT scan with a new radiopharmaceuticai, the somatostatin analogue 68Ga-DOTATATE.

[Fibrolamellar liver carcinoma: report of two cases and review of the literature].

Fibrolamellar hepatocellular carcinoma (FLC) is a rare histologic variant of hepatocellular carcinoma that appears most commonly in teenagers and young adults. The diagnosis is often made incidentally and surgical resection is the only curative treatment. Here we report two cases of incidental FLC involving a 19 year-old male, initially diagnosed with screening abdominal ultrasound, and a 14 year-old female that presented with abdominal pain.

Ileal intussusception secondary to small bowel metastases from melanoma.

A 54-year-old man on palliative treatment for disseminated cutaneous malignant melanoma presented with abdominal pain and abdominal distention. A computed tomography scan showed an area in the distal ileum suggesting intussusceptions. In an exploratory laparotomy, a 10-cm mass was found comprised of the distal ileum that had intussuscepted secondary to the small bowel metastases of melanoma.

Thyroid metastases from gallbladder cancer.

Background: Gallbladder cancer is an aggressive malignancy and radical resection is the only curative therapy available. Metastatic disease in the thyroid is rarely seen; however, different studies have confirmed that the most common primary tumor source is the kidney.

Case Report: Thyroid metastases from tumors originating in the gastrointestinal tract have been reported.