{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T08:52:46Z","timestamp":1777884766767,"version":"3.51.4"},"reference-count":16,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2011,1,1]],"date-time":"2011-01-01T00:00:00Z","timestamp":1293840000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Pediatr Dev Pathol"],"published-print":{"date-parts":[[2011,1]]},"abstract":"<jats:p>Gray zone lymphomas are defined as lymphoid malignancies that cannot be reliably classified into a single distinct disease entity after all available morphologic, immunophenotypic, and molecular investigations have been performed. The 2008 World Health Organization Classification proposed 2 gray zone lesions: (1) B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and Burkitt lymphoma and (2) B-cell lymphoma, unclassifiable, with features intermediate between diffuse large B-cell lymphoma and classical Hodgkin lymphoma. These gray zone lesions are rare, especially in pediatric patients, and create a great challenge to both pathologists and oncologists because this differential diagnosis has direct implications for management strategies. In this manuscript, we report 2 cases of pediatric patients with gray zone lymphoma and review clinicopathologic features, treatment options, and outcomes of this uncommon tumor.<\/jats:p>","DOI":"10.2350\/09-10-0724-cr.1","type":"journal-article","created":{"date-parts":[[2010,3,23]],"date-time":"2010-03-23T15:07:50Z","timestamp":1269356870000},"page":"57-63","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":6,"title":["Gray Zone Lymphomas in Pediatric Patients"],"prefix":"10.1177","volume":"14","author":[{"given":"Xiayuan","family":"Liang","sequence":"first","affiliation":[{"name":"Department of Pathology, The Children's Hospital, Aurora, CO, USA"},{"name":"Department of Pathology, University of Colorado, Denver, CO, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brian","family":"Greffe","sequence":"additional","affiliation":[{"name":"Section of Hematology\/Oncology\/Bone Marrow Transplant, The 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