solitary fibrous tumors

Abstract

The solitary fibrous tumors (STF) are mesenhimal neoplasm. In 2002, WHO classified STF in two groups: benign and malignant. Patohistological classification is based on three characteristics: more then 4 mitosis in 10 high power fields, pleomorfismus, and necrosis are malignant signs. Surgical en block resection is basic treatment technique. Adjuvant treatment in malignant form, by literature, is not very effective. Surgical treatment is first line of treatment even in case of recidive. Neo-adjuvant treatment suggested for malignant form of this tumor is limited because it is impossible preoperatively to determine definitive patohistological diagnosis. It is due to insufficient amount of tissue example, provided by punction biopsy under CT. In this paper we will show STF operated at 1997 year, and recidive after nine years which was successfully extracted.