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Updated: Apr 18, 2026

Identifying Dysregulated Genes Induced by Kaposi's Sarcoma-associated Herpesvirus KSHV
Published on: September 14, 2010
[A paradox: sarcoidosis in an HIV-positive patient]
Coen van Kan1, Jan Peringa, Armin W Walter
1Onze Lieve Vrouwe Gasthuis, Amsterdam.
Background:
In view of the diminished number of CD4+ lymphocytes, the co-existence of an HIV infection and sarcoidosis seems paradoxical. Immune reconstitution inflammatory syndrome (IRIS) may be observed in response to anti-retroviral therapy (ART). According to the conventional definition, this is caused by an overwhelming immune response to an already present or to a new agent.
Case Description:
We describe the case of a 47-year-old HIV-positive patient, who presented with an exacerbation of his sarcoidosis nine months after initiation of ART. Based on the time course and the dynamics of the CD4+ lymphocyte count, this presentation of disease can be placed in the context of IRIS.
Conclusion:
The presentation or exacerbation of sarcoidosis after initiation of antiretroviral therapy in HIV-positive patients with a low CD4+ count at start of therapy can be placed in the context of IRIS.
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