title: PRIMARY LIPOSARCOMA OF THE LUMBAR SPINE: CASE REPORT.
abstract: We report a rare case of primary bone liposarcoma of the lumbar spine, for which only one case has been reported. A female patient, 60 years of age, with lumbar pain and left sciatalgy for six months. In the imaging exams, a destructive tumor was found in the L4 vertebral body, and magnetic resonance imaging (MRI) revealed a tumoral lesion with T1 hiposignal and T2 hypersignal. Histological diagnosis was difficult, and immunohistochemistry confirmed the diagnosis. Surgical treatment was performed with wide ressection, spinal cord decompression, and anterior and posterior fusion of L3 to L5 complemented by radiotherapy and chemotherapy. After three years, a computed tomography (CT) scan evidenced an expansive injury in the lung. Despite its rarity, liposarcoma should be considered in the differential diagnosis of sciatica and primary tumors of the spine.
authors.affiliation: Orthopedic Doctor of the Spine Service, Hospital das Clínicas of the Universidade Federal de Goiás do HC/UFG - Goiânia, GO, Brazil.
authors.forename: Frederico Barra
authors.initials: FB
authors.lastname: de Moraes
authors.affiliation: Orthopedic Doctor of the Spine Service, Hospital das Clínicas of the Universidade Federal de Goiás do HC/UFG - Goiânia, GO, Brazil.
authors.forename: André Luiz Passos
authors.initials: AL
authors.lastname: Cardoso
authors.affiliation: Orthopedic Doctor of the Spine Service, Hospital das Clínicas of the Universidade Federal de Goiás do HC/UFG - Goiânia, GO, Brazil.
authors.forename: Newton Antônio
authors.initials: NA
authors.lastname: Tristão
authors.affiliation: Neurosurgeon of the Spine Service, HC/UFG - Goiânia, GO, Brazil.
authors.forename: Wilson Eloy
authors.initials: WE
authors.lastname: Pimenta
authors.affiliation: Head of the Spine Service of the HC- UFG and Head of the Orthopedics and Traumatology Department of the HC/UFG - Goiânia, GO, Brazil.
authors.forename: Sérgio
authors.initials: S
authors.lastname: Daher
authors.affiliation: Neurosurgeon, Spine Service of the HC/UFG - Goiânia, GO, Brazil.
authors.forename: Siderley
authors.initials: S
authors.lastname: de Souza Carneiro
authors.affiliation: Medical Students of the Faculty of Medicine, HC/UFG - Goiânia, GO, Brazil.
authors.forename: Nathalia Parrode Machado
authors.initials: NP
authors.lastname: Barbosa
authors.affiliation: Medical Students of the Faculty of Medicine, HC/UFG - Goiânia, GO, Brazil.
authors.forename: Nayanne
authors.initials: N
authors.lastname: de Lima Malta
authors.affiliation: Medical Students of the Faculty of Medicine, HC/UFG - Goiânia, GO, Brazil.
authors.forename: Noara Barros
authors.initials: NB
authors.lastname: Ribeiro
keywords: Bone Neoplasms; Lumbar Vertebrae; Primary Liposarcoma