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KS lesions express elevated levels of HIF1α and HIF2α. Slides of AIDS-associated dermal KS tissue were obtained from the ACRS, hematoxylin QS counterstained, and stained brown by immunohistochemistry for LANA, HIF1β, and HIF2β as indicated. Shown for each are photos at ×100 (left) and ×400 (right) magnifications from the dashed box of the photo at ×100 magnification.
