A Unique Case of Malignant Pleuropericardial Effusion: HHV-8-Unrelated PEL-Like Lymphoma-A Case Report and Review of the Literature
Overview
Authors
Affiliations
Primary effusion lymphoma (PEL) or body cavity lymphoma is a rare type of extra nodal lymphoma of B-cell origin that presents as lymphomatous effusion(s) without any nodal enlargement or tumor masses. It belongs to the group of AIDS related non-Hodgkin's lymphomas. First described in 1996 in HIV infected individuals who were coinfected with Kaposi's sarcoma-associated herpesvirus (KSHV) or HHV-8 virus, it was included as a separate entity in WHO classification of tumors of hematopoietic and lymphoid tissue in the year 2001. The definition included association with HHV-8 virus as a mandatory diagnostic criterion. However, cases were later reported where PEL-like disease process was diagnosed in HHV-8 negative patients. This was eventually recognized as a rare but distinct entity termed as "HHV-8-unrelated PEL-like lymphoma". Herein, we are reporting a case of an elderly patient who presented with a large pleuropericardial effusion and was eventually diagnosed with this entity. Till date, only around 50 cases of HHV-8-unrelated PEL-like lymphoma have been reported and our case being EBV, HIV, and Hepatitis C negative makes it very unique and rare occurrence. We are also presenting a review of relevant literature focused mainly on comparing outcomes in patients treated with and without chemotherapy.
Suyama T, Hagihara M, Matsui N, Irie R, Osamura Y, Sakai T J Clin Exp Hematop. 2023; 63(1):43-48.
PMID: 36843069 PMC: 10158722. DOI: 10.3960/jslrt.22041.
Hayashino K, Meguri Y, Yukawa R, Komura A, Nakamura M, Yoshida C Intern Med. 2022; 62(17):2531-2537.
PMID: 36575018 PMC: 10518533. DOI: 10.2169/internalmedicine.1143-22.
Gisriel S, Yuan J, Braunberger R, Maracaja D, Chen X, Wu X Mod Pathol. 2022; 35(10):1411-1422.
PMID: 35562413 PMC: 9926946. DOI: 10.1038/s41379-022-01091-x.
Primary Effusion Lymphoma: A Timely Review on the Association with HIV, HHV8, and EBV.
Liu C, Chen B, Chuang S Diagnostics (Basel). 2022; 12(3).
PMID: 35328266 PMC: 8947353. DOI: 10.3390/diagnostics12030713.
Kim M, An J, Yoon S, Yong S, Kim J, Yang W Oncol Lett. 2020; 20(6):343.
PMID: 33123254 PMC: 7583844. DOI: 10.3892/ol.2020.12206.