Bishnoi et al reported the Lichen Planus Activity Area and Severity Index (LPAASI) for evaluating a patient with lichen planus. The index has several subscores, one of which is for disease activity. The authors are from the Post Graduate Institute of Medical Education and Research in Chandigarh, India.
Patient selection: lichen planus
Parameters:
(1) new or progressing lesions
(2) time interval
(3) resolution of existing lesions and post-inflammatory pigmentation
New or Progressive Lesions
Time Interval
Resolution of Existing Lesions
Points for Activity
present
last 6 weeks
NA
4
present
last 6 weeks to 3 months
NA
3
present
last 3 to 6 months
NA
2
present
last 6 to 12 months
NA
1
none
last 12 months
NA
0 (stable and persistent)
none
> 12 months
resolution with pigmentation
-1
none
> 12 months
resolution of pigmentation
-2
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