[A rare case of a sclerodermoid chronic graft versus host disease. Successful treatment with extracorporeal photopheresis (ECP)]. / Ungewöhnliche chronische sklerodermiforme Graft-versus-Host-Erkrankung : Erfolgreiche Therapie mittels extrakorporaler Photopherese (ECP).

A 31-year-old woman presented with progressive deep linear induration on her lower abdomen, forearms and thighs. These symptoms developed three years after allogenic stem cell transplantation. Furthermore, the patient showed multiple hypopigmented lichenoid papules on the extensor surfaces of the forearms consistent with lichen sclerosus. Histological analysis of a biopsy specimen from her left thigh showed dermal sclerosis extending into the fascia, thus establishing the diagnosis of a rare combination of superficial and deep sclerodermoid chronic graft-versus-host disease. After 7 cycles of extracorporeal photopheresis, a marked resolution of the indurations and a reduction of the modified Rodnan skin score from 12 to 7 were noted.