The broad and challenging landscape of extranodal lymphoproliferations

Two sessions in the workshop of the 19th meeting of the European Association for Haematopathology termed challenging null null and extranodal non-site-specific lymphoproliferations, dealt with a series of heterogenous cases. These included lymphoproliferations of all cell lineages, from reactive lesions mimicking lymphomas through indolent lymphoid neoplasia and tumours with unclear biological behaviour to aggressive and transformed lymphomas....