Related Experiment Video
Updated: Aug 19, 2026

Sexual Development and Ascospore Discharge in Fusarium graminearum
Published on: March 29, 2012
Fusarium sporodochia on cutaneous wounds
Michael Smith1, Michael R McGinnis
1Division of Clinical Microbiology and Immunology, Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555-0704, USA. mismith@utmb.edu
Abstract:
A histopathological review of 24 cases of Fusarium-spp. culture-positive human specimens reveal sporodochia in eight cases, all of which were cutaneous injuries. These included three patients with burn wounds, three patients with ischemic necrosis, one patient who suffered trauma with extensive contamination of the injury with vegetation, and one patient with an ischemic skin graft placed for treatment of a non-healing traumatic leg injury sustained in a motor vehicle-pedestrian accident. Sporodochia consisted of swollen cells giving rise to parallel-oriented hyphae that extended upward above the surface, giving rise to a carpet of conidia on its uppermost aspect. Sporodochia have not been previously reported in humans. The presence of Fusarium sporodochia has implications with respect to infection control, as clinical care practices must be tailored to minimize potential aerolization of conidia, chlamydospores and rare budding cells, with resultant spread of the fungus during surgical manipulation, bandage change or cleaning of cutaneous wounds.
Insights
This study reports the first human cases of Fusarium sporodochia in cutaneous injuries, including burn wounds and traumatic injuries. These findings highlight the need for infection control measures to prevent fungal spread during wound care.
Area of Science:
- Mycology
- Dermatology
- Infectious Diseases
Background:
- Fusarium species are known opportunistic fungal pathogens.
- Sporodochia, a fungal reproductive structure, have not been previously documented in human infections.
Purpose of the Study:
- To report the histopathological findings of sporodochia in human Fusarium infections.
- To describe the morphology of Fusarium sporodochia in clinical specimens.
- To discuss the implications for infection control in managing cutaneous Fusarium infections.
Main Methods:
- Histopathological review of 24 Fusarium-positive human specimens.
- Identification and characterization of sporodochia in eight cases.
- Analysis of clinical data associated with positive cases.
Main Results:
- Sporodochia were identified in eight of 24 Fusarium-positive human cases.
- All identified sporodochia were associated with cutaneous injuries, including burn wounds, ischemic necrosis, and traumatic wounds.
- The morphology of sporodochia involved swollen cells, parallel hyphae, and conidia formation.
Conclusions:
- The presence of Fusarium sporodochia in human cutaneous infections is reported for the first time.
- Clinical care practices must be adapted to minimize the aerosolization and spread of fungal elements (conidia, chlamydospores, budding cells) during wound management.
- This finding has significant implications for infection control in healthcare settings treating patients with Fusarium-related cutaneous injuries.
Related Concept Videos
Skin Diseases and Disorders
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
Fungal Phylum Microsporidia
Fungal Group Zygomycota
Staphylococcal Skin Infections
Fungal Phylum Ascomycota
Cryptococcal Meningitis