This is an India ink preparation of cerebrospinal fluid in a patient with Cryptococcus neoformans meningitis. Note the clear zone of the capsule around the central nucleus of the organisms.

• 新型隐球菌脑膜炎病人的脑脊液的印第安蓝染色，可见病原体中央的细胞核周围呈现清晰亮区的孢囊。