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HHV-8 Infection in Solid-Organ Transplant—Pathogenesis, Epidemiology, Clinical Manifestations and Management
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DOI：10.1002/rmv.70193.png)
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Abstract
En 中文
Human herpesvirus-8 (HHV-8) is an oncogenic herpesvirus that poses unique challenges in solid-organ transplantation. Although uncommon, HHV-8–associated diseases including Kaposi sarcoma (KS), multicentric Castleman disease (MCD), primary effusion lymphoma (PEL), and the KSHV inflammatory cytokine syndrome (KICS) can lead to significant morbidity, graft loss, and death. The clinical spectrum ranges from indolent cutaneous lesions to fulminant systemic inflammation, yet recognition is often delayed because of nonspecific presentations and the lack of standardized screening or monitoring strategies. Regional differences in HHV-8 seroprevalence and immunosuppressive regimens further complicate prevention and management. This review summarises current understanding of HHV-8 infection in solid-organ transplant recipients, focussing on epidemiology, transmission pathways, pathogenesis, clinical manifestations, diagnostic approaches, and management principles for each major syndrome. It also highlights knowledge gaps, therapeutic challenges, and priorities for research and standardized surveillance to improve outcomes in this rare but important group of transplant-related complications. We propose a risk-stratified donor and recipient screening algorithm and a practical management framework for recipients with HHV-8 PCR positivity but without symptoms, to guide clinical practice in the absence of standardized guidelines.
Keywords:
human herpesvirus 8 (HHV-8)
kaposi sarcoma
multicentric castleman disease
post-transplant malignancy
primary effusion lymphoma
solid organ transplantation
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