|Description:||At magnification of 200X, this photomicrograph revealed some of the ultrastructural details exhibited by a pycnidium of a Phoma sp. fungal organism. A pycnidium contains pycnidiospores, or fungal spores, which are produced in its interior.|
Though uncommon, Phoma sp. are sometimes a cause of the fungal disease, phaeohyphomycosis, usually in individuals who are immunosuppressed, and may be confined to the cutaneous tissues, or rarely, systemically disseminated. Phaeohyphomycosis is of a group of fungal infections characterized by superficial and deep tissue involvement caused by dematiaceous, dark-walled fungi that form pigmented hyphae, or fine branching tubes, and yeast-like cells in the infected tissues.