ISSN 2398-2985      

Trichoepithelioma

6guinea pig

Synonym(s): Trichofolliculoma


Introduction

  • Cause: benign basal cell neoplasia of the hair follicle leading to accumulation of sebum, hair and keratin debris. The most commonly found cutaneous neoplasia.
  • Signs: mass on dorsum, most commonly in rump area, cystic, may have ulcerated surface.
  • Diagnosis: aspiration of cystic material yields sebum.
  • Treatment: complete surgical excision.
  • Prognosis: excellent once removed.

Pathogenesis

Etiology

  • Accumulation of sebum, hair and keratin debris.

Pathophysiology

  • Cystic structures form from accumulations of sebum, hair and keratin debris.
  • It is a benign form of basal cell tumor Neoplasia overview.

Timecourse

  • Usually takes weeks, and often isn't noticed until it becomes large enough to show through the hair.

Epidemiology

  • Non-infectious.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Brackee G et al (1995) Cutaneous papilloma arising from trichoepitheliomas in a guinea pig. Contemp Topics 34 (6), 91-93 PubMed.

Other sources of information

  • Hawkins M G & Bishop C R (2012) Disease Problems of Guinea Pigs. In: Ferrets, Rabbits, and Rodents Clinical Medicine and Surgery. 3rd edn. Eds: Quesenberry K E & Carpenter J W. Elsevier. pp 295-310.
  • Harkness J E, Turner P V, Vandewoude S & Wheler C L (2010) Harkness and Wagner’s Biology and Medicine of Rabbits and Rodents. 5th edn. Wiley-Blackwell. pp 343.
  • Orr H (2009) Rodents: Neoplastic and Endocrine Disease. In: BSAVA Manual of Rodents and Ferrets. Eds: Keeble E & Meredith A. British Small Animal Veterinary Association. pp 181-192.

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