1. Cytogenetic analysis of B-cell posttransplant lymphoproliferations validates the World Health Organization classification and suggests inclusion of florid follicular hyperplasia as a precursor lesion Vakiani, Efsevia; Nandula, Subhadra; Subramaniyam, Shivakumar; Keller, Christian E.; Alobeid, Bachir; Vundavalli, Murty V.; Bhagat, Govind 2007 Articles CytogeneticsLymphoproliferative disordersHyperplasiaKaryotypesPhenotype