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The most common types of lymphoid neoplasms seen included the lymphoblastic lymphoma (0.65%) and the large granular lymphocyte lymphoma (LGL, Fischer or mononuclear cell leukemia) (0.60%). The most common type of nonlymphoid neoplasm with morphologic features similar to lymphoid tumors was histiocytic sarcoma (1.1%). A small number of cases of myelogenous leukemia were also seen. Additional work is needed in the classification of hematopoietic neoplasms in rats including refined immunomorphological studies.<\/jats:p>","DOI":"10.1177\/019262338801600405","type":"journal-article","created":{"date-parts":[[2009,9,14]],"date-time":"2009-09-14T21:30:11Z","timestamp":1252963811000},"page":"451-457","source":"Crossref","is-referenced-by-count":27,"title":["Morphologic Classification and Incidence of Hematopoietic Neoplasms in the Sprague-Dawley Rat"],"prefix":"10.1177","volume":"16","author":[{"given":"Charles H.","family":"Frith","sequence":"first","affiliation":[{"name":"Toxicology Pathology Associates, 1102 Briar Creek Road, Little Rock, Arkansas 72211, and Department of Pathology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[1988,6,1]]},"reference":[{"key":"atypb1","first-page":"802","volume":"108","author":"Barsoum NJ","year":"1984","journal-title":"Arch. 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