Linfoma gástrico primario

El estomago constituye la localizacion mas frecuente del linfoma no-Hodgkin extranodal. El linfoma difuso de celulas grandes B es el tipo histologico predominante. Es un linfoma agresivo que inicialmente se presenta como enfermedad localizada asociada o no a la infeccion con Helicobacter pylori. El tratamiento conservador con regimenes quimioterapicos con antraciclina seguidos o no por radioterapia en campos comprometidos ha reemplazado a la gastrectomia como tratamiento de primera linea. The stomach is the extranodal site most commonly involved by non-Hodgkin lymphomas. Diffuse large B-cell lymphoma is the most common histotype category arising in this organ. This is an aggressive lymphoma usually presenting as limited disease, being associated or not to Helicobacter pylori infection. Conservative treatment with anthracycline-containing chemotherapy, followed or not by involved-field radiotherapy has replaced gastrectomy as standard approach against this malignancy.