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    Psoriasis - guttate

    Guttate psoriasis is a skin condition in which small, red, and scaly teardrop-shaped spots appear on the arms, legs, and middle of the body. Guttate means "drop" in Latin.

    Causes

    Guttate psoriasis is atype of psoriasis. It is usually seen in patients younger than 30. The condition often develops suddenly, usually after an infection, most notably strep throat. Guttate psoriasis is not contagious. This means it cannot spread to other people.

    Psoriasis seems to be passed down through families. Doctors think it probably occurs when the body's immune system mistakes healthy cells for harmful substances.

    In addition to strep throat, the following may trigger an attack of guttate psoriasis:

    • Bacteria or viral infections, including upper respiratory infections
    • Injury to the skin, including cuts, burns, and insect bites
    • Some medicines, including those used to treat malaria and certain heart conditions
    • Stress
    • Sunburn
    • Too much alcohol

    Psoriasis may be severe in persons who have a weakened immune system. This may include persons who have:

    • AIDS
    • Autoimmune disorders, including rheumatoid arthritis
    • Chemotherapy for cancer

    Symptoms

    Symptoms include:

    • Itching
    • Spots on the skin thatare pinkish-red and look like teardrops.
    • Spots may be covered with silver, flaky skin called scales.
    • Spots usually occur on the arms, legs, and middle of the body (the trunk), but may appear in other body areas.

    Exams and Tests

    Your doctor will look at your skin. Diagnosis is usually based on what the spots look like.

    Often, a person with this type of psoriasis has recently had a sore throat or upper respiratory infection.

    Tests to confirm the diagnosis may include:

    • Skin biopsy
    • Throat culture

    Treatment

    Goal of treatment is to control your symptoms and prevent secondary infections.

    If you have a current or recent infection, your doctor may give you antibiotics.

    Mild cases of guttate psoriasis are usually treated at home. Your doctor may recommend any of the following:

    • Cortisone (anti-itch and anti-inflammatory) cream
    • Dandruff shampoos (over-the-counter or prescription)
    • Lotions that contain coal tar
    • Moisturizers
    • Prescription medicinesthat havevitamin D to apply to the skin (topically) or that have vitamin A (retinoids) to take by mouth (orally).

    Persons with very severe guttate psoriasis may receive medicines to suppress the body's immune response. These medicines include cyclosporine and methotrexate.

    Your doctor may suggestphototherapy.This is a medical procedure in which your skin is carefully exposed to ultraviolet light. Phototherapy may be given alone or after you take amedicine that makes the skin sensitive to light.

    Outlook (Prognosis)

    Guttate psoriasis may clear completely following treatment. Sometimes, however, it may become a chronic (lifelong) condition, or worsen to the more common plaque-type psoriasis.

    Possible Complications

    • Pain
    • Secondary skin infections
    • Severe itching

    When to Contact a Medical Professional

    Call your health care provider if you have symptoms of guttate psoriasis.

    References

    Van de Kerkhof PCM, Nestle FO. Psoriasis In: Bolognia JL, Jorizzo JL, Schaffer JV, eds. Dermatology. 3rd ed. Philadelphia, Pa.: Elsevier Saunders; 2012:chap 8.

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      A Closer Look

        Review Date: 5/15/2013

        Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

        The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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