title: Leiomyosarcoma of sacrum: imaging and histopathologic findings.
abstract: A rare case of low-grade primary leiomyosarcoma of the sacrum is described in a young woman who suffered from pain in the right sacroiliac region. A lytic sacral mass was observed on conventional radiology and CT studies. Magnetic resonance imaging clearly showed Gd-DTPA enhancement in the entire mass demonstrating its hypervascularity, which was later confirmed by angiography. Histopathology and immunohistochemical results of biopsy and curettage of the lesion confirmed the diagnosis. We report on the features of a rare tumor entity through imaging and diagnostic methods.
authors.affiliation: Department of Radiology, Corpoació Sanitària Clínic, IDIBAPS, Facultat de Medicina, Universitat de Barcelona, Spain. 34100sgm@comb.es
authors.forename: Sergi
authors.initials: S
authors.lastname: Ganau
authors.forename: Xavier
authors.initials: X
authors.lastname: Tomás
authors.forename: Carme
authors.initials: C
authors.lastname: Mallofré
authors.forename: Juan M
authors.initials: JM
authors.lastname: Macho
authors.forename: Jaume
authors.initials: J
authors.lastname: Pomés
authors.forename: Andreu
authors.initials: A
authors.lastname: Combalia
mesh_terms: D000328:Adult; D015901:Angiography, Digital Subtraction; D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D012447:Sacrum / Q000000981:diagnostic imaging; D013125:Spinal Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed