title: [Can magnetic resonance imaging differentiate between benign and malignant conditions in patients with skeletal or soft tissue tumors?].
abstract: The records of 437 patients referred preoperatively for magnetic resonance imaging (MRI) due to clinical or radiological suspicion of a bone or soft-tissue malignancy were examined retrospectively in order to evaluate how good MRI is at distinguishing malignant from benign lesions. The MR-examination tends to overestimate malignancy. In all cases, the preoperative MR-examination correctly identified all malignant tumours as malignant, but also estimated a number of benign lesions as malignant. Sensitivity, specificity and predictive value was 100%, 71.2% and 76.4% respectively. In case of bursa/ganglion and pseudotumour, MR was able to correctly identify these lesions as benign. MR could not differentiate between the different types of sarcomas.
authors.affiliation: MR-centret, Skejby Sygehus, Arhus.
authors.forename: E
authors.initials: E
authors.lastname: Lundorf
authors.forename: J O
authors.initials: JO
authors.lastname: Keller
authors.forename: O S
authors.initials: OS
authors.lastname: Nielsen
authors.forename: O M
authors.initials: OM
authors.lastname: Jensen
authors.forename: T
authors.initials: T
authors.lastname: Christensen
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008279:Magnetic Resonance Imaging; D012516:Osteosarcoma / Q000473:pathology*; D011379:Prognosis; D012189:Retrospective Studies; D012509:Sarcoma / Q000473:pathology*
vernacular_title: Kan magnetisk resonans-undersøgelse adskille benigne tilstande fra maligne hos patienter med skelet- eller bløddelstumorer?