BACKGROUND: The clinical outcome of Helicobacter pylori (H. pylori) infection has been related to the presence of CagA protein. This protein is highly polymorphic and its oncogenic ability depends on the number and type of tyrosine phosphorylation sites in the EPIYAs repeat sequences (A, B, C and D). AIM...
Melanoma is one of the most aggressive and worse prognosis tumors. Early diagnosis is essential to offer therapeutic alternatives. Presentation may be variable. Within these the amelanotic melanoma form. We present the case of a patient treated at the ¨Hospital Regional de Talca¨, with an unclear diagn...
A biópsia hepática percutânea, guiada ou não por ultrassonografia, consiste na retirada de fragmento de tecido hepático. É um procedimento invasivo para estudo histopatológico do órgão, propor terapêutica, avaliar resultados de tratamento e fazer acompanhamento após transplante em várias doen...
ABSTRACT Objectives The aim of this prospective clinical study was to investigate variations in a novel oxidative stress marker (thiol/disulphide homeostasis) in men who underwent transrectal ultrasound guided prostate biopsy (TRUSB). Materials and Methods A total of 22 men undergoing TRUSB of the pr...
ABSTRACT Background and rationale. Many different non-invasive methods have been studied with the purpose of staging liver fibrosis. The objective of this study was verifying if transient elastography is superior to aspartate aminotransferase to platelet ratio index for staging fibrosis in patients with...
Se describe el caso de una mujer de 70 años que consultó por dolor abdominal asociado a pérdida de peso y sudoración nocturna. En el examen físico se destacaban una masa abdominal comprendida entre el epigastrio y el flanco izquierdo, de unos 5 cm de diámetro, duro-elástica, móvil e indolora, y a...
La paquimeningitis hipertrófica es una enfermedad infrecuente. Puede ser idiopática, secundaria a infección o enfermedad oncológica. Recientemente se la describió asociada a la enfermedad por IgG4, pudiendo ser esta la causa de muchas clasificadas como idiopáticas. Se presenta el caso de un hombre ...