title: [Color-coded duplex sonography in the differential diagnosis of cervical lymph node enlargements].
abstract: 55 patients with cervical lymph node enlargement were studied prospectively by colour coded duplex sonography. The aim was to demonstrate the perfusion of individual lymph nodes and to determine whether the resistance and pulsatile index are able to show the cause of the enlargement. The lymph nodes were subsequently examined histologically. Useful perfusion measurements were obtained in 177 lymph nodes out of 216. Perfusion index < 1.6 and resistance index < 0.8 distinguishes between reactive lymph node enlargement and lymph node metastases with an accuracy of 91%. Reliable differentiation between lymphoma and metastases was not possible. Tuberculous lymph nodes and cysts showed significantly reduced resistance and pulsatile index when compared with metastases. Further information on the type of disease was obtained from the perfusion patterns. Reactive lymph nodes showed increased central perfusion of the hilum, whereas metastases tended to show increased peripheral perfusion.
authors.affiliation: Strahlenklinik und Poliklinik, Universitätsklinikum Rudolf Virchow, Freie Universität Berlin.
authors.forename: H J
authors.initials: HJ
authors.lastname: Steinkamp
authors.forename: M
authors.initials: M
authors.lastname: Rausch
authors.forename: J
authors.initials: J
authors.lastname: Mäurer
authors.forename: N
authors.initials: N
authors.lastname: Hosten
authors.forename: H
authors.initials: H
authors.lastname: Schedel
authors.forename: R
authors.initials: R
authors.lastname: Langer
authors.forename: R
authors.initials: R
authors.lastname: Felix
mesh_terms: D003937:Diagnosis, Differential; D005188:False Negative Reactions; D005189:False Positive Reactions; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000556:secondary; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis; D009333:Neck; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed; D014388:Tuberculosis, Lymph Node / Q000000981:diagnostic imaging / Q000453:epidemiology; D018615:Ultrasonography, Doppler, Color / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data
vernacular_title: Farbkodierte Duplexsonographie in der Differentialdiagnostik zervikaler Lymphknotenvergrösserungen.