Lymphoid neoplasms A group of entities that vary widely in terms of their clinical presentation and behavior e Classification scheme that relies on a combination of clinical morphologic, phenotypic and genotypic features the relationship between lymphoma and lymphocytic leukemia Certain important relevant principles most: B Cell origin neoplasms are often composed of cells that arrest at specific stagesLymphoid neoplasms A group of entities that vary widely in terms of their clinical presentation and behavior Classification scheme that relies on a combination of clinical, morphologic, phenotypic and genotypic features the relationship between lymphoma and lymphocytic leukemia Certain important relevant principles most: B Cell origin neoplasms are often composed of cells that arrest at specific stages