Tumorlike proliferation of "granular histiocytes" in a lymph node.
D000163:Acquired Immunodeficiency Syndrome / Q000473:pathology*; D000328:Adult; D006644:Histiocytes / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology* / Q000648:ultrastructure; D008297:Male