Acute HIV infection
Alternate Names : Primary HIV infection, HIV seroconversion syndrome, Acute retroviral syndrome, HIV infection - acute
Pictures & Images
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Kaposi's sarcoma - lesion on the foot
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Kaposi's sarcoma on the foot. This once-rare malignancy of the blood vessels is now associated with AIDS. It is more frequently associated with AIDS in homosexual men than AIDS in IV drug users. The malignancy results in purplish grape-like lesions in the skin, gastrointestinal tract and other organs.
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Primary HIV infection
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HIV (human immunodeficiency virus) is more frequently transmitted through unprotected sex or sharing contaminated needles. Transmission from mother to fetus or through blood products has significantly declined in the United States.
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Kaposi's sarcoma - perianal
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Kaposi's sarcoma usually occurs in male homosexuals with AIDS. These lesions can appear anywhere on the body as purple, elevated growths. This sarcoma is located near the anus (perianal).
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Immune system structures
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The immune system protects the body from potentially harmful substances. The inflammatory response (inflammation) is part of innate immunity. It occurs when tissues are injured by bacteria, trauma, toxins, heat or any other cause.
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