8 Aiba Aiba S S Tabata Tabata N N Ishii Ishii H H Ootani Ootani H H Tagami Tagami H H Dermatofibrosarcoma protuberans is a unique fibrohistiocytic tumour expressing CD34 Dermatofibrosarcoma protuberans is a unique fibrohistiocytic tumour expressing CD34 Br J Dermatol. Here, CD34 is linked to dermatofibrosarcoma protuberans.