LAUSR

Lichen planus pigmentosus-inversus (LPPI) is a relatively uncommon variant of lichen planus (LP), characterized by mottled pigmentation of bluish, black or grey color on the fl exural folds with or without itch. It was fi rst described by Pock, et al in 2001. At present, there are only 27 cases of the disease reported from 13 reports internationally. As very few cases about LPPI are reported, the diagnosis and selection of therapeutic scheme are fairly difficult for physicians. Herein, we report 3 cases who presented with LPPI, obtaining good results after Chinese medicine (CM) treatment. These cases have typical clinical and histological performance. Meanwhile, a case of melanosis is reported, which has similar clinic manifestation and is differentiated by pathological diagnosis. This report was authorized by all patients.