Pemphigus Foliaceus

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    What Is Pemphigus Foliaceous

    Pemphigus Foliaceus is an uncommon disease characterized by immune reaction and subsequent development of pustules in the superficial layers of the skin.

    Signs & Symptoms

    At the early onset, the disease may be confined to the head, but later it spreads to more of the body. The lesions are bilaterally symmetrical and tend to develop in waves. Animals may rapidly progress from the total absence of disease signs to the sudden appearance of dozens of pustules which quickly form thick, adherent crusts with marked peeling. These peeling crusts represent the hallmark of the pemphigus foliaceous. The top of the muzzle and ears, skin around eyes, and footpads are the most commonly affected regions. In severe cases, dogs may have a fever.

    Susceptible Dog Breeds

    The disease is most commonly seen in middle-aged dogs, with the:


    The diagnosis is based on the clinical signs, skin biopsy and immunologic testing.


    Immunosuppressive drug therapy using corticosteroids or other, more potent medications, is essential to treatment. If your dog has been prescribed steroids, be vigilant about keeping his bowl full of fresh water, as the drugs often cause increased thirst.

    Recent studies show that in some dogs with Pemphigus Foliaceous, immunosuppression can lead to long-term remission of skin lesions, and a recurrence of clinical signs does not necessarily follow that discontinuation of treatment.

    After clinical signs undergo complete remission, which occurs 2 to 5 months after immunosuppression is started, the drugs may be tapered progressively and eventually withdrawn. The total duration of immunosuppressive therapy can vary between 3 and 22 months. Skin lesions may not recur for up to 6 years after treatment is stopped, although most dogs need life-long therapy.

    Video Credits: TheWebinarVet
    Image Credits: Caroldermoid, Wikipedia


    1. Olivry et al. – Prolonged Remission After Immunosuppressive Therapy In Six Dogs With Pemphigus Foliaceous
    2. Mordecai Siegal – UC Davis Book of Dogs: The Complete Medical Reference Guide for Dogs and Puppies


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