Case 175. 

Lymph node biopsy from the same patient of lethal penicilliosis marneffei
　 　 　 　
　
Yeast-form fungi filling the cytoplasm of macrophages are PAS-reactive.
 　
　 　 　 　

　

 　 Protozoan parasites such as Leishmania and Trypanosoma can be distinduished by PAS and Grocott stains.The protozoa is negative wiil PAS and Grocott stains.