Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Piezoelectric-assisted removal of a benign fibrous histiocytoma of the mandible: An innovative technique for prevention of dentoalveolar nerve injury | Wagner et al. Head Face Medicine 2011 7 20 http content 7 1 20 HEAD FACE MEDICINE METHODOLOGY Open Access Piezoelectric-assisted removal of a benign fibrous histiocytoma of the mandible An innovative technique for prevention of dentoalveolar nerve injury 1Ỷ 1 Ỷ 2 1 1 Maximilian EH Wagner Majeed Rana Wolfgang Traenkenschuh Horst Kokemueller André M Eckardt and Nils-Claudius Gellrich1 Abstract In this article we present our experience with a piezoelectric-assisted surgical device by resection of a benign fibrous histiocytoma of the mandible. A 41 year-old male was admitted to our hospital because of slowly progressive right buccal swelling. After further radiographic diagnosis surgical removal of the yellowish-white mass was performed. Histologic analysis showed proliferating histiocytic cells with foamy granular cytoplasm and no signs of malignancy. The tumor was positive for CD68 and vimentin in immunohistochemical staining. Therefore the tumor was diagnosed as primary benign fibrous histiocytoma. This work provides a new treatment device for benign mandibular tumour disease. By using a novel piezoelectric-assisted cutting device protection of the dentoalveolar nerve could be achieved. Keywords Piezosurgery benign fibrous histiocytoma mandibular tumor dentoalveolar nerve atraumatic bone surgery Background According to the WHO histological classification of tumors primary benign fibrous histiocytoma BFH of bone is defined as a benign lesion composed of spindleshaped fibroblasts arranged in a storiform pattern with a variable admixture of small multinucleated osteoclastlike giant cells. Foamy cells xanthoma chronic inflammatory cells stromal haemorrhages and haemosiderin pigment are also commonly present 1 . According to this classification there are less than 100 reported cases of BFH worldwide and only six reported cases in the mandible 2-7 . It is usually found in long bones especially femur and tibia and the pelvic bone but may occur in .
