Cryptococcus neoformans: pitfalls in diagnosis through evaluation of gram-stained smears of purulent exudates.

AUTOR(ES)

Bottone, E J

RESUMO

The recognition of Cryptococcus neoformans in Gram-stained smears of purulent exudates may be hampered by the presence of the large gelatinous capsule which apparently prevents definitive staining of the yeast-like cells. In such stained preparations, C. neoformans may appear either as round cells with gram-positive granular inclusions impressed upon a pale lavender cytoplasmic background or as gram-negative lipoid bodies.

Documentos Relacionados

• Trichomomas vaginalis in gram-stained smears.
• Prospective study of gram-stained stool smears in diagnosis of Clostridium difficile colitis.
• Reproducibility of interpretation of Gram-stained vaginal smears for the diagnosis of bacterial vaginosis.
• Comparison of the automicrobic system, acridine orange-stained smears, and gram-stained smears in detecting bacteriuria.
• Observer variation in the interpretation of Gram-stained urethral smears: implications for the diagnosis of non-specific urethritis.