641 bytes added
, 11:26, 30 June 2010
*Caused by [[Fungi|''Malassezia pachydermatis'']]
*Yeast, normally present in external ear canal and skin
*Clinical disease may cause yeast to proliferate and cause infection
*Grossly:
**Regional lesions: muzzle, ears, interdigital, perianal
**Or generalised disease
**Erythematous, hyperpigmented, [[Skin Glossary - Pathology|lichenified]] and scaly lesions with alopecia
*Microscopically:
**[[Skin Glossary - Pathology|hyperkeratosis, parakeratosis]]
**Spongiotic pustular dermatitis
**[[Skin Glossary - Pathology|Acanthosis]]
**Organisms are usually present, minimum 3-5 yeasts per high-power field must be found to imply cause of disease