[Histopathological study of the presence of Helicobacter pylori-type bacteria in surgical specimens from patients with chronic cholecystitis].

Introduction: Helicobacter species have recently been found to be associated with some diseases of the biliary tree but this relationship remains unclear and further studies are required. The aim of this study was to determine the presence of H. pylori-type bacteria in patients with a diagnosis of chronic cholecystitis through histopathological study of surgical gallbladder specimens.

[Clinical and pathological correlation in fatal dengue cases found in Maracaibo, Venezuela].

Introduction: Given the importance of dengue in America, it is indispensable to know the cause of death of the infected people and to evaluate the few necropsy studies available.

Objective: To describe and to analyze the relevant clinical and pathological findings in fatal dengue cases of dengue in a Venezuelan endemic area.

Methods: Eight fatal cases, according to clinical and epidemiological dengue criteria and/or confirmed by complete serological tests were studied after complete clinical necropsy.

[Acute non-specific splenitis as indicator of systemic infection. Assessment of 71 autopsy cases].

Classic pathology textbooks claim that acute splenitis reflects septic states, nevertheless, the evidence upon which that association is based remains unclear. We assessed the occurrence of acute splenitis, as an indicator of systemic infection, in 34 autopsies performed in patients in whom the cause of death was due to multiple organ dysfunction syndrome, secondary to sepsis (group A); and in 37 cases of death by non-infectious causes (group B). These necropsies were done during the period January 31, 1999-December 31, 2000, at the Pathology Department of the Hospital General del Sur "Dr.