AIDS-Related Complex
Synonyms
AIDS Related Complex
ARC
Complex, AIDS-Related
Lymphadenopathy Syndrome
Lymphadenopathy Syndromes
Syndrome, Lymphadenopathy
Syndromes, Lymphadenopathy
A prodromal phase of infection with the human immunodeficiency virus (HIV). Laboratory criteria separating AIDS-related complex (ARC) from AIDS include elevated or hyperactive B-cell humoral immune responses, compared to depressed or normal antibody reactivity in AIDS; follicular or mixed hyperplasia in ARC lymph nodes, leading to lymphocyte degeneration and depletion more typical of AIDS; evolving succession of histopathological lesions such as localization of Kaposi's sarcoma, signaling the transition to the full-blown AIDS.