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A Canker Barking at the Wrong Knee: Thyronectria austroamericana Septic Arthritis

Sasinuch Rutjanawech1, Carlos Mejia-Chew1, Chapelle Ayres1

  • 1Division of Infectious Diseases, Washington University School of Medicine in St Louis, St Louis, Missouri, USA.

Open Forum Infectious Diseases
|August 30, 2021
PubMed

Insights

The mold Thyronectria austroamericana, a known honey locust tree pathogen, has been identified as causing septic arthritis in a human patient. This marks the first reported instance of this fungal infection in humans.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Plant Pathology

Background:

  • Thyronectria austroamericana is a fungal plant pathogen.
  • It is known to cause canker disease in honey locust trees (Gleditsia triacanthos).
  • Fungal infections in humans can lead to various clinical manifestations.

Observation:

  • A case of septic arthritis was observed.
  • The causative agent was identified as the mold Thyronectria austroamericana.
  • The infection occurred in a human patient.

Findings:

  • This study reports the first documented case of Thyronectria austroamericana causing septic arthritis in a human.
  • The findings highlight a novel zoonotic potential of this plant pathogen.
  • Diagnostic and treatment strategies for this rare fungal arthritis are discussed.

Implications:

  • This discovery expands the known host range of Thyronectria austroamericana.
  • It underscores the importance of considering environmental fungi as potential human pathogens.
  • Further research is needed to understand the pathogenesis and epidemiology of human infections caused by this fungus.
Keywords:
Thyronectria austroamericanafungal septic arthritis

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