Rhodotorula spp

From Dog
Rhodotorula on agar[1]

Rhodotorula are a genus of opportunistic fungi which commonly resides in soil, dust and water.

Rhodotorula are part of the normal canine surface microbiota and exhibit in vitro resistance to commonly used antimicrobials[2].

It can occasionally cause superficial mycoses and epididymitis[3] in dogs.

This fungus grows on culture plates as a smooth salmon-pink colonies consisting of ovoidal yeast, about 10 microns in diameter.

Species which are pathogenic to dogs include:

  • Rhodotorula glutinis
  • Rhodotorula minuta[4]

In dogs, they cause superficial mycoses characterized by non-pruritic areas of erythematous ulcers which can be cultured for diagnosis[5].

Phaeohyphomycosis does not appear to be a feature of this fungal infection

Treatment may be successful with topical or parenteral ketoconazole or itraconazole.

References

  1. Chiba University
  2. Brito EH et al (2009) The anatomical distribution and antimicrobial susceptibility of yeast species isolated from healthy dogs. Vet J 182(2):320-326
  3. Kadota K et al (1995) Granulomatous epididymitis related to Rhodotorula glutinis infection in a dog. Vet Pathol 32(6):716-718
  4. Tarrant J (2005) Organisms in an aspirate from an ulcerated mass: etiologic agent or mass-querade? Vet Clin Pathol 34(2):165-168
  5. Bond R (2010) Superficial veterinary mycoses. Clin Dermatol 28(2):226-236