LOW PREVALENCE OF BARRETT'S ESOPHAGUS IN A RISK AREA FOR ESOPHAGEAL CANCER IN SOUTH OF BRAZIL.

Background: Barrett's esophagus a complication of gastroesophageal reflux disease (GERD) is a precursor of esophageal adenocarcinoma. The incidence of esophageal adenocarcinoma has been increasing in most Western countries. Rio Grande do Sul (RS), the Southernmost state of Brazil has the highest rates of esophageal cancer with low prevalence of esophageal adenocarcinoma.

IS THE IMMUNOCROMATOGRAPHIC FECAL ANTIGEN TEST EFFECTIVE FOR PRIMARY DIAGNOSIS OF HELICOBACTER PYLORI INFECTION IN DYSPEPTIC PATIENTS?

Background: The diagnosis of H. pylori infection can be performed by non-invasive and invasive methods.The identification through a fecal antigen test is a non-invasive, simple, and relatively inexpensive test.

EFFECT OF ANTIOXIDANT POTENTIAL ON SEVERITY OF CIRRHOSIS IN HUMANS.

Background/aims: to examine the relationship between the antioxidant potential and severity parameters of cirrhosis in humans.

Methods: fifteen patients with hepatic cirrhosis (nine subjects - Child group B, and six subjects - Child group C) and nine control subjects were enrolled in the study. The main criteria taken into account to characterize the diagnosis of cirrhosis and its complications were the AST: ALT ratio, AST to platelet ratio index, Bonacini score, Meld score and Child classification.

Immunohistochemical expression of HER2 in adenocarcinoma of the stomach.

Background: Worldwide, gastric cancer is the fourth cancer in incidence and the second most common cause of cancer death. Gastric cancer is asymptomatic in the early stages and very often diagnosed at advanced stages, determining a dismal prognosis. Expression of the HER2 gene has been identified in about 20% of gastric cancer cases, and its hyper-expression is associated with poor prognosis.

Peptic ulcer frequency differences related to h. Pylori or aines.

Background: Peptic ulcer etiology has been changing because of H. pylori decline.

Objectives: To estimate peptic ulcer prevalence in 10 years-interval and compare the association with H.

Transverse myelitis associated to HCV infection.

Complications involving the central nervous system in patients suffering from hepatitis C virus (HCV) infection have been rare. Among them, it appears the transverse myelitis, which has already been reported in likely association with HCV. This paper presents the case study of a 65-year-old woman who developed cervical transverse myelitis linked to chronic HCV infection and anti-HCV antibodies in the spinal fluid, being excluded other etiologies for transverse myelitis.

Sternal osteomyelitis caused by infection with Mycobacterium tuberculosis.

We report the case of a 74-year-old male patient with a one-year history of chest pain in the suprasternal notch associated with erythema, edema and drainage of purulent material from a fistulous lesion. The patient was HIV-negative with no history of TB. A CT scan of the chest showed an osteolytic lesion in the sternum, and a biopsy revealed caseous granuloma, which, in the microbiological evaluation, was negative for fungi and acid-fast bacilli.

[Neurofibroma of thyroid in a patient with neurofibromatosis type 1].

The neurofibromatosis type 1 (NF1), also known as von Recklinghausens disease, is an autosomal dominant disorder, with high degree of variability of clinical expression, usually involved with formation of tumors, with benign origin in the majority of cases mainly localized in the region of the head and neck and rarely incident in the thyroid area. However, the association with medullary carcinoma of the thyroid (MCT) exists in literature and needs to be excluded. We report a case of a patient with NF1, nonfunctional thyroid nodule and obstructive symptoms.