Ultrasonography is an accurate technique for the diagnosis of gastrointestinal tumors in patients without localizing symptoms.

Introduction And Objectives: This study compared the accuracy of ultrasonography in the diagnosis of gastrointestinal tumors in patients with several degrees of clinical suspicion.

Material And Methods: We recruited patients that were suspect for gastrointestinal neoplasia but with no evidence of localizing symptoms (group A), and patients that were suspect for colon cancer (group B) or for gastric cancer (group C). Accuracy in the diagnosis was compared for: gastric cancer in groups A and C, and for colon cancer in groups A and B.

[Usefulness of digestive ultrasonography in the assessment of ulcerative colitis extent].

Introduction: A full examination of the colon should be avoided upon finding severe endoscopic lesions in patients with ulcerative colitis. However, knowledge of the precise extent of disease is quite important for disease prognosis and the making of therapeutic decisions. Therefore, any validation of a non-invasive technique to assess the extent of ulcerative colitis gains a lot of interest and importance.

[Idiopathic ductopenia in adults as a cause of cryptogenic cirrhosis and complications of portal hypertension].

We describe a 56 years old male patient with long-term chronic liver disease of unknown etiology presenting with esophageal varices rupture. Prophylaxis of re-bleeding with propranolol and endoscopic sclerotherapy failed to prevent further haemorrhagic events and the placement of a transjugular intrahepatic portosystemic shunt (TIPS) was needed. The portal hemodynamic data revealed sinusoidal portal hypertension and the liver biopsy displayed ductopenic cholestasis.

[The incidence of gastric carcinoma after gastrectomy for peptic ulcer in the Vigo region. A case-control study].

After reviewing 10,000 upper gastrointestinal endoscopies performed at the endoscopy unit of the city of Vigo over a 38 month period, we have found 485 partial gastric resections for peptic ulcer, 357 gastric carcinomas were found, of which 26 occurred after partial gastric resection for peptic ulcer. Therefore the incidence of gastric cancer in this area was 22-23/100,000. The frequency of gastric cancer after partial resective surgery was lower than expected during the first 20 years after surgery.