Lapis ISSN 2398-2969

Skin: pyoderma

Contributor(s): Sarah Pellett, Livia Benato

Introduction

  • Pyoderma is a bacterial infection of the skin.
  • It is a common finding in pet rabbits and is often due to underlying causes such as ptyalism, urine scalding, epiphora, bite wounds, infected skin folds and injection reactions.
  • CauseStaphylococcus aureusPsudomonas aeruginosa(blue fur disease), Pasteurella multocidaand Fusobacterium necrophourm.
  • Signs: papules, pustules, bacterial infection of dermal and subcuticular tissues, alopecia, swelling, erythema, ulceration, abscessation and necrosis.
  • Diagnosis: history, clinical signs, microscopy, bacterial culture and histopathology.

Presenting signs

  • Determined by the underlying cause.
  • Three common locations: facial, dewlap, perineal pyoderma.
  • Pododermatitis is also a common problem.
  • Alopecia.
  • Erythema.
  • Papules and pustules.
  • Tissue necrosis, ulceration and abscessation.
  • Moist dermatitis characterized by a blue/green discoloration of the fur (especially around the dewlap).
  • General debilitation, including lethargy and anorexia.

Breed predisposition

  • French Lops   French Lop   and Giant English Lops   English Lop   are prone to superficial pyoderma in the large skin folds around the perineum and under the chin.
  • Breeds with dense, long fur such as Dwarf   Dwarf Lop  , Miniature Lops   Miniature Lop  and Angora   Angora   rabbits are more susceptible to perineal dermatitis.

Sex predilection

  • Female rabbits are more susceptible to dewlap and perineal pyoderma.

Pathogenesis

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Diagnosis

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Treatment

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Prevention

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Sequelae

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Further Reading

Publications

Refereed papers
  • Recent references fromPubMedandVetMedResource.
  • Benato L, Stoeckli M R et al( 2013)A case of antibacterial-responsive mucocutaneous disease in a seven-year-old dwarf lop rabbit ( Oryctolagus cuniculus) resembling mucocutaneous pyoderma of dogs.  J Small Anim Pract54(4), 209-212PubMed.
  • White S D, Linder K E, Schultheiss P et al(2000)Sebaceous adenitis in four domestic rabbits.  Vet Derm 11(1), 53-60VetMedResource.
  • Hermans K, De Herdt P, Devriese L A et al(1999) Colonisation of rabbits with Staphylococcus aureusin flocks with or without chronic staphylococcus.  Vet Microbiol67, 37-46PubMed.

Other sources of information

  • Meredith A (2014)Dermatoses. In: BSAVA Manual of Rabbit Medicine. Eds: Meredith A & Lord B. BSAVA, Gloucester. pp 255-263.
  • Varga M (2014)Textbook of Rabbit Medicine. 2nd edn. Butterworth Heinemann Elsevier, Edinburgh.
  • Kanfer S (2013)Sebaceous Adenitis and its Relationship to Thymomas in Rabbits. In: Proc Association of Exotic Mammal Veterinarians Conference. Sheraton City Centre, Indianapolis, Indiana. pp 39-44.
  • Mans C (2013)Skin diseases. In: Clinical Veterinary Advisor. Birds and Exotic Pets. Eds: Mayer J & Donnelly T M. Elsevier: USA. pp 278-280.
  • DOvidio D & Santoro D (2013) Oro-Dental diseases and Dermatological Disorders are Highly Associated in Pet Rabbits: A Case-Control Study. In: Proc Association of Exotic Mammal Veterinarians Conference. Sheraton City Centre, Indianapolis, Indiana. pp 37-38.
  • Vella D (2013)Dermatopathies. In: Clinical Veterinary Advisor. Birds and Exotic Pets. Eds: Mayer J & Donnelly T M. Elsevier: USA. pp 360-364.
  • Oglesbee B (2011)Pyoderma. In: Blackwells Five Minute Veterinary Consult - Rodents. Wiley-Blackwell, Chichester. pp 495-496.
  • Scott D W, Miller W H & Griffin C E (1995)Dermatoses of Pet Rodents, Rabbits and Ferrets. In: Muller and Kirks Small Animal Dermatology. 5th edn. W B Saunders. pp 1127-1174.
  • Wilkinson G T & Harvey R G (1994) Colour Atlas of Small Animal Dermatology  A Guide to Diagnosis. 2nd edn. Mosby-Wolfe.


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