Chrysosporium anamorph Nannizziopsis vriesii: an emerging fungal pathogen of captive and wild reptiles

Vet Clin North Am Exot Anim Pract. 2013 Sep;16(3):659-68. doi: 10.1016/j.cvex.2013.05.013. Epub 2013 Jul 17.


Chrysosporium anamorph Nannizziopsis vriesii is a recent pathogen associated with infections in lizards, snakes, and crocodilians. It seems to be an obligate pathogen. It has been isolated from wild reptiles in addition to captive animals. Affected animals often present with aggressive, pyogranulomatous lesions that can affect the integument and musculoskeletal systems. Diagnosis can be done using culture, histopathology, and polymerase chain reaction assay. Ancillary diagnostic tests can be useful in characterizing the health status of the affected reptile and aid in planning supportive care and therapy. Treatment using antifungals has shown mixed results.

Keywords: Chrysosporium anamorph Nannizziopsis vriesii; Diagnostic testing; Fungus; Pathogen; Reptile.

Publication types

  • Review

MeSH terms

  • Animals
  • Antifungal Agents / therapeutic use
  • Chrysosporium / isolation & purification*
  • Dermatomycoses / drug therapy
  • Dermatomycoses / microbiology
  • Dermatomycoses / pathology
  • Dermatomycoses / veterinary*
  • Lizards / microbiology
  • Reptiles / microbiology*
  • Skin / microbiology
  • Skin / pathology
  • Snakes / microbiology


  • Antifungal Agents