label: Pediatric Nodal Marginal Zone Lymphoma
label_lc: pediatric nodal marginal zone lymphoma
description: "A nodal marginal zone lymphoma affecting the pediatric population, predominantly males.  It presents with asymptomatic and localized (mainly head and neck) disease in the vast majority of cases.  Morphologically there is often progressive transformation of the germinal centers.  The prognosis is excellent."