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MASI. Scheme for calculating the index of severity of melasma. Total score ranges from 0 to 48
| Intensity of pigmentation * | Homogeneity of pigmentation * | Affected area ** | Multiplication factor | Value | ||||
|---|---|---|---|---|---|---|---|---|
| Forehead | ( | + | ) | X | X | 0.3 | ||
| Right malar | ( | + | ) | X | X | 0.3 | ||
| Left malar | ( | + | ) | X | X | 0.3 | ||
| Chin | ( | + | ) | X | X | 0.1 | ||
| MASI | SUM TOTAL |
Categories: 0 none, 1 mild, 2 moderate, 3 outstanding e 4 maximal.
Categories: 0 normal skin; 1=< 10%; 2 =10%-29%; 3 =3049%; 4 =50%-69%; 5 =70%-89%; 6 =90%-100%.
