Abstract
To determine the incidence of a clonal lymphoid disease in patients with chronic rheumatoid arthritis (RA) and neutropenia. Lymphocytes from 23 RA patients with either current neutropenia or a history of this complication were studied. Eight patients had a clonal rearrangement of the T cell receptor beta-chain gene. Phenotypically, they showed a distinctive pattern characterized by an inverted CD4+:CD8+ cell ratio and an increased number and percentage of CD57+/CD8+ and CD3+/DR+ lymphocytes. None had evidence of a lymphoid malignancy. Among RA patients with neutropenia, there is a subset who have a subclinical disease resembling T gamma lymphoproliferative disease.
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