SLC3A2 and B-cell chronic lymphocytic leukemia: Sequencing analysis of the germline complementary determining region 3 (CDR3) region of the <i>immunoglobulin heavy chain (IGH)</i> gene showed that the Hodgkin/Reed-Sternberg cells were clonally unrelated to the preexisting CLL cells and the HRS cells were composed of five different clones, leading to the molecular diagnosis of de novo lymphocyte-rich classic Hodgkin lymphoproliferative diseases (LPDs) with small lymphocytic lymphoma (SLL).