CD37 and Lymphadenopathy: In March 2008 was treated with 6 cycles of FCR, and rituximab maintenance for 3 years (REM [Rituximab in maintenance] clinical trial) and in October 2012 (P2.4, PBMCs), P2 rapidly developed an increase in lymphocytosis with generalized lymphadenopathy and was treated with anti-CD37 (TRU-016) plus bendamustine and attained PR.