Narrowband UVB treatment of pigmented purpuric lichenoid dermatitis (Gougerot-Blum).

Pigmented purpuric dermatoses are a group of dermatoses characterized clinically by pinpoint petechia and purpura on a brown, red or yellow base. Five diseases are included in the group of pigmented purpuric eruptions which significantly overlap clinically and histologically. Phototherapy in various forms of purpuric dermatoses has been reported in literature previously. Here we present a case of pigmented purpuric lichenoid dermatitis which rapidly cleared with narrowband UVB therapy.