Psoriasis Area and Severity Index
| PASI | |
|---|---|
| Purpose | measurement of severity of psoriasis |
Psoriasis Area and Severity Index (PASI) is the most widely used tool for the measurement of severity of psoriasis. PASI combines the assessment of the severity of lesions and the area affected into a single score in the range 0 (no disease) to 72 (maximal disease).