T cell histiocyte rich large B cell lymphoma presenting as suppurative lymphadenitis causing a diagnostic pitfall

Abstract

T cell histiocytes rich large cell lymphoma (THRLBCL) is rare variant of DLBCL and characterised by predominantly reactive cell and a few atypical B cells. It has an aggressive clinical course and can metastasise to different organ. Due to presence of reactive T cells and histiocytes, it can be misdiagnosed as reactive lymphadenitis. Ancillary technique like immunohistochemistry can help in diagnosing this entity. We describe a case of T cell histiocyte rich large B cell lymphoma presenting as suppurative lymphadenitis which is a rare presentation.