title: Fine-needle aspiration diagnosis of extrapulmonary Pneumocystis carinii lymphadenitis in a human immunodeficiency virus positive patient.
abstract: Extrapulmonary Pneumocystitis 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.
authors.affiliation: Department of Pathology and Medicine, St. Paul's Hospital, University of British Columbia, Vancouver, Canada.
authors.forename: E
authors.initials: E
authors.lastname: Ellison
authors.forename: S Y
authors.initials: SY
authors.lastname: Yuen
authors.forename: L
authors.initials: L
authors.lastname: Lawson
authors.forename: N H
authors.initials: NH
authors.lastname: Chan
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000382:microbiology / Q000473:pathology*; D000328:Adult; D001707:Biopsy, Needle; D006679:HIV Seropositivity / Q000150:complications / Q000473:pathology*; D006801:Humans; D008199:Lymphadenitis / Q000382:microbiology / Q000473:pathology*; D008297:Male; D016720:Pneumocystis Infections / Q000382:microbiology / Q000473:pathology*