- 1UP Interactions Cellules Environnement, VetAgro Sup, Univ Lyon, 69280, Marcy l'Etoile, France. didier.pin@vetagro-sup.fr.
Abstract
Dermatophytoses
in animals are fungal diseases of the skin caused by dermatophyte fungi
of the genus Microsporum or Trichophyton. Because the infection is
generally follicular, the most common clinical sign is one or many
circular areas of alopecia with variable erythema, scaling and crusting,
and the primary differential diagnoses are follicular infections, such
as bacterial folliculitis and demodicosis. Although dermatophyte
folliculitis or ringworm is the most commonly observed lesion of
dermatophytoses in animals, other presentations may be observed
according to the host species and the dermatophyte involved:
dermatophyte folliculitis or ringworm, scaling and crusting in
dermatophytosis due to Microsporum persicolor, nodule in case of kerion
or mycetoma,
matted hairs, seborrheic dermatosis or miliary dermatitis in cats,
generalized exfoliative dermatoses in dogs, cats and horses, superficial
non-follicular pustules, papules and macules in the Devon Rex cat,
pruritic dermatophytoses in dogs, cats and horses, and onychomycosis in
dogs, cats and horses. Since manifestations of dermatophytosis are
highly variable, particularly in the cat, dermatophytosis should be
considered in case of any annular, papular, nodular or pustular
dermatoses, alopecic or not, sometimes pruritic, and nodular dermatoses
as well.
KEYWORDS:
Animal; Dermatology; Dermatophytosis; Differential diagnosis
