EBV+ HHV-8+ Multicentric Castleman Disease With Plasmablastic Aggregates in an HIV+ Man: An Evolving Clinicopathologic Entity

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Abstract

We report a case of EBV+ and HHV-8+ multicentric Castleman disease with plasmablastic aggregates in an HIV-positive individual. A 41-year-old man presented in early 2015 with fevers, sweats, weight loss, intractable itching, and on subsequent testing was found to be HIV positive. Investigations showed cervical lymphadenopathy and splenomegaly. He was treated for HIV and his symptoms resolved. His symptoms recurred in January 2016, and a provisional diagnosis of multicentric Castleman disease was entertained. The HHV-8 (human herpesvirus-8) and EBV (Epstein-Barr virus) viral load was elevated. A left supraclavicular lymph node core biopsy was performed, which showed features of multicentric Castleman disease with plasmablastic aggregates that are EBV (EBER) and HHV-8 positive. He responded well to rituximab treatment and remains well with no symptoms at recent follow-up.

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