It was found that in neoplastic disorders levels of sTNF-alpha R and acute phase proteins are elevated and correlate with disease activity and poor prognosis. The aim of the study was to determine levels of sTNF-alpha R and acute phase proteins in patients with lymphoma at presentation and after treatment and compare with healthy individuals. Serum concentration of sTNF-alpha R was estimated by ELISA method, fibrinogen and haptoglobin by nephelometric method in 46 lymphoma patients and in 14 healthy individuals. Mean sTNF-alpha R concentration in lymphoma group was statistically significantly higher than in healthy individuals (p = 0.00057) and in patients with complete remission (CR) (p = 0.024). Mean concentration of fibrinogen and haptoglobin was significantly statistically higher at presentation of lymphoma than in CR (p = 0.0001, p = 0.0001). We found the correlation between the mean concentration of sTNF-alpha R, fibrinogen and haptoglobin at presentation of lymphoma. There was no difference in the survival time in patients with higher concentration of sTNF-alpha R. Our data indicate the important role of the elevated concentration of sTNF-alpha R, fibrinogen and haptoglobin as factors of disease activity in lymphoma patients but they do not correlate with disease's prognosis.