Protozoal Dermatosis

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Revision as of 10:45, 30 June 2010 by Bara (talk | contribs) (Created page with '*Cutaneous infection may become a part of systemic infection *Mostly caused by ''Leishmania'' *Transmitted by sandflies *Occurs in dogs, cats and rodents…')

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  • Cutaneous infection may become a part of systemic infection
  • Mostly caused by Leishmania
  • Transmitted by sandflies
  • Occurs in dogs, cats and rodents (also humans)
  • Grossly in dog:
    • Generalised alopecia
    • Silvery white scales
    • Nodules and ulcers if more severe
    • Mainly on muzzle, ears and eyes where flies feed
  • Microscopically:
    • Hyperkeratosis, parakeratosis, crusts
    • Granulomatous nodules in dermis
    • Macrophages, some lymphocytes and plasma cells - periadnexal pattern, may affect sebaceous glands
    • Organisms may be found extra or intracellularly