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Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus (KSHV)
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Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus (KSHV)

Published on: September 14, 2010

Kaposi sarcoma.

Oana Radu1, Liron Pantanowitz

  • 1Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15232, USA.

Archives of Pathology & Laboratory Medicine
|February 2, 2013
PubMed
Summary
This summary is machine-generated.

Kaposi sarcoma (KS), a vascular tumor linked to human herpesvirus 8 (HHV8), presents diverse clinical forms and histologic variants. Accurate identification by pathologists is crucial, especially given its association with AIDS-defining malignancies.

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Establishment and Quantification of De Novo Lytic Infection by Cell-free Kaposi's Sarcoma-Associated Herpesvirus

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Area of Science:

  • Oncology
  • Virology
  • Pathology

Background:

  • Kaposi sarcoma (KS) is a low-grade vascular neoplasm primarily associated with Kaposi sarcoma herpesvirus/human herpesvirus 8 (KSHV/HHV8) infection.
  • KS lesions typically manifest on mucocutaneous sites but can affect any organ system.
  • Recognized clinical forms include classic, endemic, AIDS-associated, and iatrogenic KS, with evolving presentations like antiretroviral therapy-related changes.

Purpose of the Study:

  • To review the epidemiology, clinical presentations, and histopathologic variants of Kaposi sarcoma.
  • To highlight the importance of recognizing contemporary KS manifestations for accurate diagnosis.
  • To emphasize the role of immunohistochemistry in differentiating KS from similar conditions.

Main Methods:

  • Review of existing literature on Kaposi sarcoma.
  • Description of clinical and histopathologic features.
  • Discussion of diagnostic markers, including Latency-associated nuclear antigen (HHV8).

Main Results:

  • Kaposi sarcoma lesions progress through patch, plaque, and tumor stages.
  • Numerous histologic variants of KS have been identified, expanding beyond classic descriptions.
  • Latency-associated nuclear antigen (HHV8) is a key immunohistochemical marker for KS diagnosis.

Conclusions:

  • Kaposi sarcoma exhibits diverse clinical and histologic presentations.
  • Pathologists must be aware of these variations for accurate diagnosis.
  • KS remains a significant AIDS-defining malignancy, underscoring the need for diagnostic proficiency.