Fine‐needle aspiration diagnosis of extrapulmonary Pneumocystis carinii lymphadenitis in a human immunodeficiency virus positive patient

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Abstract
Extrapulmonary Pneumocystis carinii is an uncommon and probably underdiagnosed complication of pulmonary P. carinii infections. We report the cytologic diagnosis of a case of P. carinii lymphadenitis which presented, without concurrent or historical pneumonitis, in a human immunodeficiency virus (HIV) positive patient who was taking aerosolized pentamidine. the diagnosis was suggested by abundant granular exudate on the cell block. Only scant, fragmented, irregular‐shaped granular exudate was present on the direct smears and the Millipore filter preparation. the diagnosis was confirmed by special stains on the cell block. © Wiley‐Liss, Inc.