[Abdominal paraesophageal bronchogenic cyst].

We report a case of abdominal paraesophageal bronchogenic cyst in a 19 year-old patient who complained of dysphagia. Based on this exceptional finding, the authors state overview the pathogenic theories and the histologic features which distinguish para-esophageal bronchogenic cysts from duplications. Preoperative diagnosis is difficult, but endoscopic ultrasound seems to be the imaging method of choice.

[Follicular gastritis in adults. Relations with Helicobacter pylori, histological and endoscopic aspects].

Follicular gastritis (FG) is characterized by lymphoid follicle hyperplasia in the gastric mucosa. The aim of this prospective study was to determine the prevalence of FG in adults, their relation to Helicobacter pylori infection, and their histological and endoscopic features. Of 445 patients (379 men, 66 women), 36.

[Omeprazole and liver functions].

Omeprazole is the first of a new class of drugs (proton pump blockers) approved in the United States and in Europe for its high efficiency as an inhibitor of gastric acid secretion. Omeprazole is a drug for short term use in patients with acid-peptic disease. A limited prevalence of hepatotoxic effects is reported by some authors (transitory rise in serum aminotransferase level) and it may be prescribed in patients with chronic liver disease although slower metabolism and greater bioavailability are observed.