Acanthosis Nigricans

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                      General Information



Acanthosis nigricans is a skin condition that usually appears

first in the underarm area of the front legs.  It begins as a

small, oval brown spot that gradually darkens and spreads to the

front legs, chest, lower sides, abdomen and hind legs.  As the

disease progresses, the affected skin becomes darker and thicker

and begins to fold.  The skin has an unpleasant odor and feels

greasy.



Primary acanthosis nigricans occurs almost exlusively in

Dachshunds and often appears in young dogs.  The condition is

probably inherited, and its cause is not well understood.



Secondary acanthosis may occur in any breed and is associated

with (1) friction in the underarm areas due to obesity or heavy

skin folds, (2) hormonal imbalances of the thyroid, adrenal or

sex glands, and (3) hypersensitivity (allergic) reactions.



                 Important Points in Treatment



1.  Primary acanthosis nigricans is controllable but not curable.

    Treatment is usually necessary for your dog's whole life.

    With secondary acanthosis nigricans, the outlook depends on

    whether the underlying cause can be corrected.



2.  Laboratory tests are often necessary to diagnose the

    condition and monitor its progress during treatment.



3.  Medication:  All medication must be given as directed and on

    schedule.  Notify the doctor if you cannot give the

    medication as directed.



4.  Diet:  In overweight dogs, the diet must be adjusted to

    promote weight loss, thereby reducing frictional irritation

    of the skin.  When obesity is part of the underlying cause of

    acanthosis, control is impossible without adequate weight

    loss. The doctor will discuss a proper feeding schedule with

    you.



5.  Bathing instructions:





        Notify the Doctor if Any of the Following Occur:



    * Your dog's skin and coat do not improve after 4 weeks'

    treatment.



    * Your dog's condition worsens.



    * You cannot medicate your dog as directed.