Abstract
Peripheral lymphadenopathy is commonly present in HIV-infected patients and has a wide spectrum of differential diagnoses. We carried out a cross-sectional study of peripheral lymph node biopsies performed from January 2004 to December 2008 in HIV-infected patients who attended a tertiary-care hospital in southern Brazil. Only 60 of 210 peripheral lymph node biopsies performed (28%) were non-diagnostic. The most common diagnoses included: mycobacteriosis (105 cases; 50.2%); lymphoma (19 cases; 9.0%); systemic mycosis (12 cases; 5.7%) including histoplasmosis, cryptococcosis and histoplasmosis; and metastatic cancer (2.9%). Peripheral lymph node biopsy is a simple and useful tool to diagnose opportunistic diseases in HIV-infected patients.
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