Anaplastic variant of diffuse large B‐cell lymphoma: Reappraisal as a nodal disease with sinusoidal involvement

Abstract

Anaplastic variant (av) of diffuse large B‐cell lymphoma (DLBCL) is morphologically defined in the 2017 World Health Organization classification, but still an enigmatic disease in its clinicopathologic distinctiveness, posing the differential diagnostic problem from gray zone lymphoma (GZL) and classic Hodgkin lymphoma (cHL).