Figure 4.

Bronchoalveolar lavage cytology specimen demonstrating variably sized round to oval intracellular fungal yeast forms, measuring between 4 and 10 µm with narrow-based budding, present within pulmonary macrophages ((A, B) Papanicolaou stain, ThinPrep, 600×; (C, D) Grocott methenamine silver stain, Cytospin, 600×)).