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    Glossary Psoriasis Area and Severity Index

    tool measuring psoriasis severity and affected body area

    The Psoriasis Area and Severity Index (PASI) is a tool used by healthcare professionals to measure the severity and extent of psoriasis, a chronic skin condition. It combines the assessment of the redness, thickness, and scaling of the skin lesions with the percentage of body surface area affected, providing a score that helps guide treatment decisions and monitor disease progression.

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