Lichen planus-like eruption following autologous bone marrow transplantation for chronic myeloid leukaemia.

A 47-year-old female treated with an autologous bone marrow transplant and cytotoxic chemotherapy developed a lichen planus-like eruption 12 months later. It involved the skin and oral mucosa, with the histological features of a lichenoid graft-versus-host reaction, including satellite cell necrosis. This eruption developed de novo. The eruption resolved with topical betamethasone valerate 0.1% cream despite the ongoing use of the immunomodulatory agent interferon-alpha2b. Such a reaction in an autologous setting has only been described once previously.