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1.
J Gastroenterol Hepatol ; 31(5): 953-8, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26630310

RESUMO

BACKGROUND AND AIM: In high or moderate risk populations, periodic surveillance of patients at risk of progression from gastric precursor lesions (PL) to gastric cancer (GC) is the most effective strategy for reducing the burden of GC. Incomplete type of intestinal metaplasia (IIM) may be considered as the best candidate, but it is still controversial and more research is needed. To further assess the progression of subtypes of IM as predictors of GC occurrence. METHODS: A follow-up study was carried-out including 649 patients, diagnosed with PL between 1995-2004 in 9 participating hospitals from Spain, and who repeated the biopsy during 2011-2013. Medical information and habits were collected through a questionnaire. Based on morphology, IM was sub-classified as complete (small intestinal type, CIM) and incomplete (colonic type, IIM). Analyses were done using Cox (HR) models. RESULTS: At baseline, 24% of patients had atrophic gastritis, 38% CIM, 34% IIM, and 4% dysplasia. Mean follow-up was 12 years. 24 patients (3.7%) developed a gastric adenocarcinoma during follow-up. The incidence rate of GC was 2.76 and 5.76 per 1,000 person-years for those with CIM and IIM, respectively. The HR of progression to CG was 2.75 (95% CI 1.06-6.26) for those with IIM compared with those with CIM at baseline, after adjusting for sex, age, smoking, family history of GC and use of NSAIDs. CONCLUSIONS: IIM is the PL with highest risk to progress to GC. Sub-typing of IM is a valid procedure for the identification of high risk patients that require more intensive surveillance.


Assuntos
Adenocarcinoma/patologia , Transformação Celular Neoplásica/patologia , Gastrite Atrófica/patologia , Lesões Pré-Cancerosas/patologia , Neoplasias Gástricas/patologia , Estômago/patologia , Adenocarcinoma/epidemiologia , Adulto , Biópsia , Progressão da Doença , Feminino , Seguimentos , Gastrite Atrófica/epidemiologia , Humanos , Estudos Longitudinais , Masculino , Metaplasia , Pessoa de Meia-Idade , Análise Multivariada , Lesões Pré-Cancerosas/epidemiologia , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco , Espanha/epidemiologia , Neoplasias Gástricas/epidemiologia , Inquéritos e Questionários , Fatores de Tempo
2.
Gastroenterol Hepatol ; 35(4): 251-3, 2012 Apr.
Artigo em Espanhol | MEDLINE | ID: mdl-22445543

RESUMO

Neuroendocrine tumors of the gastrointestinal tract are highly infrequent. We report the case of a 57-year-old woman who presented with toxic syndrome, vomiting and a 3-month history diarrhea, with a final diagnosis of poorly-differentiated neuroendocrine tumor. Based on this case, we review the clinical characteristics, diagnostic procedures, prognostic factors and therapeutic possibilities in this type of tumor. Neuroendocrine tumors should be considered in the diagnosis of colonic tumors with hyperechoic liver metastases.


Assuntos
Carcinoma Neuroendócrino/patologia , Carcinoma Neuroendócrino/secundário , Neoplasias do Colo/patologia , Neoplasias Hepáticas/secundário , Feminino , Humanos , Pessoa de Meia-Idade
3.
Gastroenterol. hepatol. (Ed. impr.) ; Gastroenterol. hepatol. (Ed. impr.);35(4): 251-253, Abr. 2012. ilus
Artigo em Espanhol | IBECS (Espanha) | ID: ibc-102903

RESUMO

Resumen Los tumores neuroendocrinos del tubo digestivo son lesiones muy poco frecuentes. Se presenta el caso de una mujer de 57 años de edad que consulta por síndrome tóxico, vómitos y diarrea de 3 meses de evolución, con diagnóstico final de tumor neuroendocrino pobremente diferenciado. A partir de esta observación clínica se revisan las características clínicas y procedimientos diagnósticos, los factores pronósticos y las posibilidades terapéuticas en este tipo de tumores. Ante una tumoración colónica con metástasis hepáticas hiperecogénicas se debe considerar siempre el diagnóstico de tumor neuroendocrino (AU)


Abstract Neuroendocrine tumors of the gastrointestinal tract are highly infrequent. We report the case of a 57-year-old woman who presented with toxic syndrome, vomiting and a 3-month history diarrhea, with a final diagnosis of poorly-differentiated neuroendocrine tumor. Based on this case, we review the clinical characteristics, diagnostic procedures, prognostic factors and therapeutic possibilities in this type of tumor. Neuroendocrine tumors should be considered in the diagnosis of colonic tumors with hyperechoic liver metastases (AU)


Assuntos
Humanos , Feminino , Pessoa de Meia-Idade , Carcinoma Neuroendócrino/patologia , Neoplasias do Colo/patologia , Metástase Neoplásica/patologia , Endoscopia do Sistema Digestório
4.
Rev. esp. patol ; 36(2): 189-193, abr. 2003. ilus, tab
Artigo em Es | IBECS (Espanha) | ID: ibc-26202

RESUMO

Introducción: Las cromograninas son proteínas extensamente distribuidas en el sistema neuroendocrino, y su expresión puede usarse en la caracterización de los tumores neuroendocrinos.Material y métodos: Este estudio analiza mediante inmunohistoquímica la presencia de cromogranina A en 32 biopsias de adenomas hipofisarios humanos, secretores y no secretores.Resultados: Todos los adenomas secretores de FSH y los no secretores muestran inmunoreactividad intensa para cromogranina A, mientras que otros adenomas hipofisarios son negativos o débilmente positivos en escasas células.Conclusiones: La cromogranina A puede utilizarse como marcador de adenomas hipofisarios humanos no secretores. (AU)


Assuntos
Humanos , Cromograninas/isolamento & purificação , Adenoma/patologia , Neoplasias Hipofisárias/patologia , Biomarcadores Tumorais/isolamento & purificação , Imuno-Histoquímica/métodos
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