Table 2: The statistical results of traditional and MMS assisted PDT treatment of PWS.

GradesTraditional PDT treatment of PWSMMS assisted PDT treatment of PWS
Number of lesionsPercentage (%)Number of lesionsPercentage (%)

I1286.6155.1
II74638.312441.9
III92347.414549.0
IV1457.4113.7
V70.310.3

Total of lesions1949296