Description: | Caption: This photomicrograph revealed ultrastructural details exhibited by the fungal organism, Penicillium marneffei, which included filamentous septate hyphae, septate conidiophores topped by metulae, followed distally by phialides, and finally chains of round, unicellular conidia, resembling a paint brush, and known as penicilli. These organisms were isolated from a splenic abscess. |