Skin: primary seborrhea

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Sections available in full article Introduction, Presenting signs, Age predisposition, Breed predisposition, Cost considerations, Pathogenesis, Etiology, Pathophysiology, Timecourse (incubation, duration), Diagnosis, Presenting problems, Client history, Clinical signs, Diagnostic investigation, Confirmation of diagnosis, Histopathology findings, Differential diagnosis, Treatment, Standard treatment, Sources, Publications, Vetstream contributor(s),
Contributors Mr David Scarff BVetMed CertSAD MRCVS
Dr Rosanna Marsella DVM DipACVD
Synonyms keratinization defect

Introduction

  • Cause : inherited disorder of keratinization or cornification.
  • Signs : scaly skin, often greasy, often malodoros; greasy otitis externa common.
  • Diagnosis : history, clinical signs, exclude causes of secondary seborrhea.
  • Treatment : management of secondary skin and ear infections, topical therapy and oral retinoids.
  • Prognosis : incurable.

Diagnosis

Clinical signs

  • Excessive scale.
  • Greasy coat.
  • Skin malodorous.
  • Otitis externa (hyperplastic).
  • Claws dry and flaky.
  • Digital hyperkeratosis.

Diagnosis

Differential diagnosis

  • Malasseziadermatitis Skin: malassezia disease.
  • Endocrine disease especially:
    • Hypothyroidism Hypothyroidism.
    • Hyperadrenocorticism Hyperadrenocorticism.
  • Superficial pyoderma.
  • Demodex Demodex canis.
  • Mycosis fungoides in older dogs.

Sources

Publications

Refereed papers

  • Recent references from PubMed.
  • Scott D W et al(1996) Primary seborrhea in English Springer Spaniels - a retrospective study of 14 cases. JSAP 37 (4), 173-178.
  • Werner A H et al(1994) Retinoids in veterinary dermatology. Clin Dermatol 12 (4), 579-586.

Other sources of information

  • Kwochka K W (1993) Keratinization abnormalities, understanding the mechanism of scale formation. In: Ihrke P J et al(eds) Advances in Veterinary Dermatology.Vol 2, pp 91. New York: Pergamon Press.

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