Figure 1.

(a) Aspirate smear of an inguinal lymph node showing poorly formed granuloma with neutrophils. Combining the cytology and serological result, the diagnosis of cat scratch disease was made (Papanicolaou stain, ×400). (b) Bronchoalveolar lavage specimen with Strongyloides in an immunocompromised patient (Papanicolaou stain, ×600). (c) Scrape cytology smear of a non-healing ulcer on the hand of a patient with acute myeloid leukemia. The smear showed fungal hyphae characteristic of Mucor species (Hematoxylin and Eosin, ×400). (d) Bronchoalveolar lavage specimen showing the characteristic “fluffy” clusters of Pneumocystis jiroveci in a patients with AIDS (Papanicolaou stain, ×600).