Fig. 2From: Classical Hodgkin lymphoma-type and monomorphic-type post-transplant lymphoproliferative disorder following liver transplantation: a case reportMicroscopic findings of biopsy from the cervical lymph node. a Hyperplasia of large and pleomorphic atypical lymphoid cells was observed in the lymph nodes (hematoxylin/eosin). b Immunohistochemical staining was positive for CD20. c Epstein–Barr virus-encoded ribonucleic acid in situ hybridization was negative in the tumor cellsBack to article page