TABLE 2.3.
Fungal Identification in Tissue
| Organism | Size (Width in µm) | Defining Morphology |
|---|---|---|
| Histoplasma capsulatum | 2-5 | Narrow-neck bud |
| Cryptococcus neoformans | 5-20 | Narrow-neck bud |
| Blastomyces dermatitidis | 15-30 | Broad-based bud |
| Candida glabrata | 3-5 | Budding, no pseudohyphae |
| Candida spp. | 2-3 | Yeast, pseudohyphae, hyphae |
| Aspergillus spp. | 3-5 | Acute-angle branching, septate, conidial head |
| Zygomyces spp. | 5-8 | Right-angle branching, ribbons, pauciseptate |
| Pseudallescheria spp. | 3-4 | Acute-angle branch, septate, terminal chlamydospore, pigmented conidia |
| Fusarium spp. | 4-5 | Acute and right-angle branch, septate, narrowed branch points |
| Coccidioides immitis | 20-200 | Endosporulation |