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Psoriatic Plaques

Overview

    • Look For

    • Raised erythematous patches, particularly affecting the extensor surfaces of joints, scalp, periumbilicus, lower back and skin folds
    • Significance

    • In a patient with a symmetric polyarthritis, the presence of psoriatic plaques is pathognomonic for psoriatic arthritis, and are very useful in distinguishing this from rheumatoid arthritis - the other major differential.
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Associated Diseases
BETA

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