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Gitelson E , Al-Saleem T , Robu V , Millenson MM , Smith MR
Pediatric nodal marginal zone lymphoma may develop in the adult population
Leukemia & Lymphoma. 2010 Jan;51(1) :89-94
AbstractPediatric nodal marginal zone lymphoma (NMZL) is described as a separate variant of NMZL in the most recent WHO classification of tumors of hematologic and lymphoid tissues. It has distinctive morphology and clinical presentation and stands out as an indolent disease with remarkably better overall prognosis compared to classic NMZL. Here we report two adult patients with NMZL with clinical and morphologic features consistent with pediatric NMZL (pNMZL) and review available literature describing the clinical and histologic presentation of pNMZL. Two men, ages 44 and 18 years, each presented with localized cervical lymphadenopathy, both demonstrated florid proliferation of the marginal zone and disruption of reactive germinal centers, progressive transformation of germinal centers-like morphologic features typical for pNMZL and clonal disease with immunophenotype consistent with NMZL. This is the first report of pNMZL in a middle-aged person. Distinct histologic features and characteristic benign clinical course will help to distinguish this rare variant from other NMZL in the adults. Clinically, recognition is important to understand the true incidence of this rare form in the adult population and to avoid unnecessary overtreatment of this indolent form.
NotesGitelson, Elena Al-Saleem, Tahseen Robu, Valentin Millenson, Michael M. Smith, Mitchell R. 20 Taylor & francis ltd; 4 park square, milton park, abingdon ox14 4rn, oxon, england 551ho