The recipient mice were held for observation until they developed externally obvious lymphadenopathy (approximately 100 d for the Eμ-MYC tumors, 58 d for the Eμ-MYC/BCRHEL tumors, 21 d for the Eμ-MYC/BCRHEL/sHEL tumors, and 14 d for the MMTV-rtTA/TRE-MYC/BCRHEL/sHEL tumors). Here, MYC is linked to Lymphadenopathy.