P119 : A case of lymphomatoid contact dermatitis secondary to hair dye

Lymphomatoid contact dermatitis is a subset of cutaneous pseudolymphoma that clinically and histopathologically resembles both allergic contact dermatitis and cutaneous lymphoma. A variety of allergens have been described since the first description of this entity in 1976. Typically lymphomatoid contact dermatitis is related to T cell hyperplasia. We herein describe a case of cutaneous B-cell lymphoid contact dermatitis caused by hair dye. This case demonstrates that lymphomatoid contact dermatitis can present with various clinical features and emphasizes that thorough history-taking and examination is important for the diagnosis.