Treat Canis Skin: solar dermatitis
ISSN 2398-2969      

Skin: solar dermatitis

i  canis
Contributor(s):

Didier Carlotti

Rosanna Marsella

Synonym(s): Actinic dermatosis

Introduction

  • Solar dermatitis is a phototoxic reaction that occurs in poorly pigmented skin.

Pathogenesis

Etiology

  • Caused by UV exposure.

Predisposing factors

General
  • Lack of pigmentation.
  • Lack of hair.
  • Sunbathing.
  • Some breeds are at increased risk for lack of pigmentation.

Specific

  • Sunny climates.

Pathophysiology

  • Sun induced damage of the skin.
  • UV light triggers keratinocyte apoptosis and leukocyte infiltration.
  • Follicular damage occurs leading to dilation and recruitment of leukocytes in the areas.
  • Dysplastic and neoplastic changes occur with time.

Timecourse

  • Acute: erythematous painful lesions.
  • Chronic: to develop elastin changes and dysplastic modifications.

Diagnosis

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Treatment

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Ishii Y, Kimura T, Itagaki S, Doi K (1997) The skin injury induced by high energy dose of ultraviolet in hairless descendants of Mexican hairless dogs. Histol Histopathol 12 (2), 383-389 PubMed.
  • Frank L A, Calderwood-Mays M B, Kunkle G A (1996) Distribution and appearance of elastic fibers in the dermis of clinically normal dogs and dogs with solar dermatitis and other dermatoses. Am J Vet Res 57 (2), 178-181 PubMed.
  • Breen P T (1972) Nasal solar dermatitis. Vet Med Small Anim Clin 67 (6), 652-653 PubMed.
  • Yankell S L, Khemani L, Dolan M M (1970) Sunscreen recovery studies in the Mexican hairless dog. J Invest Dermatol 55 (1), 31-33 PubMed.

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