VEGF levels in effusions from patients with malignant and nonmalignant disease.

AIDS-PEL (n = 8), nonmalignant AIDS, no PEL (n = 4), ovarian cancer (n = 8), lung cancer (n = 5; open circles), breast cancer (n = 1; open square), thymic cancer (n = 2; closed circles) and nonmalignant samples (n = 5). Bars indicate the average of each group. Statistical significance versus AIDS-PEL was determined by Student t test analysis.