A Morphological Approach to the Diagnosis of Protozoal Infections of the Central Nervous System
Figure 4
Acanthamoeba and Balamuthia spp have similar morphology. (a) Trophozoites have a pale granular cytoplasm (arrows), that stain well with Giemsa (b) Cysts have a double thicker cell wall (c), also shown in the insert (arrows). (a) and (c), H&E; (b) and insert, Giemsa.