Malassezia pachydermatis
It is a leavening (unicellular fungus) enough frequent in canine and little in cats. In general we found it as responsible for many external otitis with a typical secretion of serumen amarronado with a characteristic scent (rancid).
Also it can be polluting of injuries in the skin accompanying allergic pictures, bacterial infections or in animals in treatments with corticoids, the main symptom in this case is picazón (prurito) with yellowish injuries and that are descaman.
It is arrived at the diagnosis as in the other cases of micosis by culture or observation to the microscope of a sample of they serumen of the ear
With the microscopic observation it is possible generally to be diagnosed, otherwise, it is necessary to make a culture.
The treatment is based on oticos lavajes with clorhexidina or iodopovidona 2 times per day and to place miconazol (it is the election drug), minimum 4 weeks. When days disappear leavenings to continue 10-15 more. Other antimicóticos to consideration of the Veterinary Doctor can be used.