Abstract
Lymph node biopsy was performed in 39 homosexual men with unexplained persistent generalized lymphadenopathy (PGL). Thirty-seven (95 per cent) of these patients had antibodies to human T-lymphotropic virus type III (HTLV-III), at the time of biopsy. Histology in all but one showed only follicular hyperplasia, the exception showed caseating granulomata typical of tuberculosis. Clinical differentiation between lymphadenopathy associated with HTLV-III and other causes of generalized lymphadenopathy is difficult; however, the presence of antibodies to HTLV-III probably identifies patients in whom surgical biopsy will only occasionally reveal a specific histological diagnosis. It is suggested that the presence of antibodies to HTLV-III in patients with PGL justifies a more selective approach to lymph node biopsy.
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