Abstract Natural killer (NK)/T-cell lymphomas and NK-cell leukemias are aggressive
malignancies. Occurring worldwide, they show a predilection for Asian and South American …

Abstract Purpose of Review Extranodal NK/T cell lymphoma, nasal type (ENKTL-NT) is an
aggressive extranodal non-Hodgkin lymphoma most commonly occurring in East Asia and …

Extranodal NK/T-cell lymphoma, nasal type (ENKTCL-NT) is an aggressive malignancy
associated with Epstein-Barr virus infection, with a geographic and racial predilection for …

Summary Epstein–Barr virus (EBV)-positive T-cell and natural killer (NK)-cell
lymphoproliferative diseases (EBV-TNKLPD) are a group of uncommon disorders …

EBV-associated T and NK-cell lymphoproliferative diseases (EBV-T/NK LPDs) are
characterized by the transformation and proliferation of EBV-infected T or NK cells. The 2016 …

Extra-nodal NK/T-cell lymphoma, nasal type (ENKTCL) is a highly aggressive Epstein-Barr
virus associated lymphoma, typically presenting in the nasal and paranasal areas. We …

Abstract The World Health Organization recently published the 4th edition of the
Classification of Head and Neck Tumors, including several new entities, emerging entities …

Epstein–Barr virus (EBV; human herpesvirus 4; HHV‐4) and Kaposi sarcoma‐associated
herpesvirus (KSHV; human herpesvirus 8; HHV‐8) are human gammaherpesviruses that …

Background Ki-67 is a nuclear protein involved in cell proliferation regulation, and its
expression has been widely used as an index to evaluate the proliferative activity of …

One of the most challenging diagnostic categories within tumors of the sinonasal tract is the
small round blue cell tumors. Biopsies are usually small and limited, resulting in …