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Abstract
In order to obtain valid data on the pattern, frequency and prognostic significance of autoimmune derangements in non-Hodgkin's lymphoma (NHL) we studied 626 consecutive adult NHL patients participating in a population-based lymphoma registry. A total of 86 patients, corresponding to 13.7%, showed autoimmune phenomena (AP). Of these, 7.8% exhibited clinical autoimmune phenomena (CAP), and 5.9% showed immunohaematological phenomena (IHP). The distribution of histological subgroups of NHL in the AP and non-AP patients was similar. The same holds true for the CAP and IHP patients. A slight, non-significant overrepresentation of NHL, T-cell phenotype was found in patients with AP. CAP preceded the diagnosis of NHL in most patients, whereas IHP was associated with active lymphoma disease. AP as a whole did not predict for time to complete response, time: to relapse or for survival. The finding that IHP patients relapsed earlier than CAP patients was not reflected in a significant difference in survival.