Desmoplastic fibroblastoma (DF), also known as collagenous fibroma, is a rare benign fibrous tumor, recently described. It occurs predominantly in trunk and upper limbs, and can appear at any age. The authors describe a case of a 42-yearold female patient with DF, with upper limb neurovascular compromise. Patient was submitted to block excision of the tumor mass and brachial artery, with arterial reconstruction...